Statewide opinion polling for the 2016 Democratic Party presidential primaries

This article contains opinion polling by U.S. state for the 2016 Democratic Party presidential primaries. For currency and accuracy, please note the specific dates for each polling as listed below. For the significance of the earliest state votes, the Iowa caucuses and the New Hampshire primary, see United States presidential primary – Iowa and New Hampshire. To know when any given state votes, see the timeline of primaries and caucuses.

Note: A statistical tie occurs when two data points from within a set are within twice the margin of error of each other. When adding polls remember to double the margin of error provided to see the true result.

This map shows which candidate is leading in the most recent opinion polling for each state.
Key:

Hillary Clinton

20 states

Bernie Sanders

3 states

Shared states (statistically tied)

20 states

No polling data in the three months preceding the state's primary

7 states, 1 district/territory

Note: This map reflects the latest opinion polling results, NOT the final actual result of the primaries/caucuses themselves. A map of the primaries' results is located at File:Democratic Party presidential primaries results, 2016.svg.

Statewide polling

Alabama

Delegate count: 53 Pledged, 7 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 1, 2016	Hillary Clinton 77.8%	Bernie Sanders 19.2%	Other 3.0%
Monmouth[1] Margin of error: ± 5.8% Sample size: 300	February 25–28, 2016	Hillary Clinton 71%	Bernie Sanders 23%	Others / Undecided 6%
Public Policy Polling[2] Margin of error: ± 4.4 Sample size: 500	February 14–16, 2016	Hillary Clinton 59%	Bernie Sanders 31%
News-5/Strategy Research[3] Margin of error: ± 2 percent Sample size: 3,500	August 11, 2015	Hillary Clinton 78%	Bernie Sanders 10%

Alaska

Delegate count: 16 Pledged, 4 Unpledged

Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 29, 2016	Bernie Sanders 79.6%	Hillary Clinton 20.2%	Other 0.2%
Alaska Dispatch News/Ivan Moore Research[4] Margin of error: ± ~3.8% Sample size: 651	Published January 23, 2016[4]	Bernie Sanders 48%	Hillary Clinton 34%	Martin O'Malley 6% Undecided 14%

Arizona

Delegate count: 75 Pledged, 10 Unpledged

Winner: Hillary Clinton
Primary date: March 22, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	March 22, 2016	Hillary Clinton 56.3%	Bernie Sanders 41.4%	Others 2.3%
Merrill Poll[5] Margin of error: ± 5.4% Sample size: 300	March 7-11, 2016	Hillary Clinton 50%	Bernie Sanders 24%	Others / Undecided 26%
MBQF Consulting and Marson Media[6] Margin of error: ± 3.6% Sample size: 739	Published February 29, 2016	Hillary Clinton 56%	Bernie Sanders 22%	Others / Undecided 22%
Behavior Research Center[7] Margin of error: ± 7.3% Sample size: 186	October 24 – November 5, 2015	Hillary Clinton 47%	Bernie Sanders 19%	Martin O'Malley 2% Uncommitted 32%
One America News[8] Margin of error: ± 4.7% Sample size: 427	Published August 17, 2015	Hillary Clinton 56%	Bernie Sanders 34%	Joe Biden 6% Lincoln Chafee 2% Jim Webb 1% Martin O'Malley 1%
Public Policy Polling [9] Margin of error: ± 6% Sample size: 268	May 1–3, 2015	Hillary Clinton 58%	Bernie Sanders 16%	Lincoln Chafee 5% Jim Webb 5% Martin O'Malley 4% Not sure 12%

Arkansas

Delegate count: 32 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 1, 2016	Hillary Clinton 66.1%	Bernie Sanders 30.0%	Others 4.0%
Public Policy Polling[10] Margin of error: ± 4.3 Sample size: 525	February 14–16, 2016	Hillary Clinton 57%	Bernie Sanders 32%
Talk Business/Hendrix[11] Margin of error: ± 3.3% Sample size: 451	February 4, 2016	Hillary Clinton 57%	Bernie Sanders 25%	Don't Know 18%
Suffolk University[12] Margin of error: ± ? Sample size: 209	September 20–23, 2014	Hillary Clinton 71%	Joe Biden 8%	Andrew Cuomo 5% Elizabeth Warren 3% Martin O’Malley 2% Undecided/Refused 10%
Polling Company/WomenTrend[13] Margin of error: ± ? Sample size: ?	August 6–7, 2013	Hillary Clinton 59%	Joe Biden 14%	Others/Undecided 27%

California

Delegate count: 475 Pledged, 71 Unpledged

Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source	Date	1st	2nd	Other
California Secretary of State Primary results	June 7, 2016	Hillary Clinton 53.1%	Bernie Sanders 46.0%	Others 0.9%
CBS News/YouGov[14] Margin of error: ±5.0% Sample size: 674	May 31-June 3, 2016	Hillary Clinton 49%	Bernie Sanders 47%	Others / Undecided 4%
American Research Group[15] Margin of error: ± 5% Sample size: 400	May 31 – June 2, 2016	Hillary Clinton 48%	Bernie Sanders 47%	Others / Undecided 5%
NBC/WSJ/Marist[16] Margin of error: ±4.2% Sample size: 557	May 29-31, 2016	Hillary Clinton 49%	Bernie Sanders 47%	Others / Undecided 4%
Field[17] Margin of error: ±4.1% Sample size: 571	May 26-31, 2016	Hillary Clinton 45%	Bernie Sanders 43%	Others / Undecided 12%
USC Dornsife/Los Angeles Times[18] Margin of error: ± 2.9% Sample size: 1,500	May 19-31, 2016	Hillary Clinton 49%	Bernie Sanders 39%	Others / Undecided 13%
SurveyUSA[19] Margin of error: ±% Sample size: 803	May 19-22, 2016	Hillary Clinton 57%	Bernie Sanders 39%	Undecided 4%
PPIC[20] Margin of error: ±5.7% Sample size: 552	May 13-22, 2016	Hillary Clinton 46%	Bernie Sanders 44%	Undecided 10%
Hoover Institution State Poll[21] Margin of error: ±3.47% Sample size: 1,700	May 4-16, 2016	Hillary Clinton 51%	Bernie Sanders 38%	Others / Undecided 11%
Sextant (D)/Capitol Weekly[22] Margin of error: ±2.3% Sample size: 1,617	April 28-May 1, 2016	Hillary Clinton 49%	Bernie Sanders 39%	Others / Undecided 12%
SurveyUSA/KABC/SCNG[23] Margin of error: ± % Sample size: 826	April 27-30, 2016	Hillary Clinton 57%	Bernie Sanders 38%	Others / Undecided 6%
FOX News[24] Margin of error: ± 4% Sample size: 623	April 18-21, 2016	Hillary Clinton 48%	Bernie Sanders 46%	Others / Undecided 6%
CBS News/YouGov[25] Margin of error: ± 4.5% Sample size: 1,124	April 13-15, 2016	Hillary Clinton 52%	Bernie Sanders 40%	Others / Undecided 8%
Gravis Marketing[26] Margin of error: ± 3.4% Sample size: 846	April 7-10, 2016	Hillary Clinton 47%	Bernie Sanders 41%	Others / Undecided 12%
Field[27] Margin of error: ± 4.0% Sample size: 584	March 24 - April 4, 2016	Hillary Clinton 47%	Bernie Sanders 41%	Others / Undecided 12%
SurveyUSA[28] Margin of error: ± 3.6% Sample size: 767	March 30 - April 3, 2016	Hillary Clinton 53%	Bernie Sanders 39%	Others / Undecided 8%
USC Dornsife/Los Angeles Times[29] Margin of error: ± 3.7% Sample size: 832	March 16-23, 2016	Hillary Clinton 47%	Bernie Sanders 36%	Others / Undecided 17%
PPIC[30] Margin of error: ± 6.2% Sample size: 529	March 6-15, 2016	Hillary Clinton 48%	Bernie Sanders 41%	Others / Undecided 11%
Field Poll[31] Margin of error: ± 5.6% Sample Size: 329	January 6, 2016	Hillary Clinton 46%	Bernie Sanders 35%	Martin O'Malley 1% Undecided 18%

Polls in 2015

Poll source	Date	1st	2nd	Other
Field Poll[32] Margin of error: ± 5.0% Sample size: 391	September 17 – October 4, 2015	Hillary Clinton 47%	Bernie Sanders 35%	Martin O'Malley 1% Jim Webb 1% Lincoln Chafee 0% Other 2% Undecided 14%
Field Poll[32] Margin of error: ± 5.0% Sample size: 391	September 17 – October 4, 2015	Hillary Clinton 40%	Bernie Sanders 31%	Joe Biden 15% Martin O'Malley 1% Lincoln Chafee 0% Jim Webb 1% Other 2% Undecided 12%
USC/LA Times[33] Margin of error: ± 3.6% Sample size: ?	August 29 – September 8, 2015	Hillary Clinton 42%	Bernie Sanders 26%	Other/NA 16% Undecided 16%
USC/LA Times[33] Margin of error: ± 3.6% Sample size: ?	August 29 – September 8, 2015	Hillary Clinton 39%	Bernie Sanders 23%	Joe Biden 11% Other/NA 11% Undecided 16%
Field Poll[34] Margin of error: ± 7.0% Sample size: 356	April 23 – May 16, 2015	Hillary Clinton 53%	Elizabeth Warren 13%	Joe Biden 6% Bernie Sanders 5% Jim Webb 1% Martin O'Malley 0% Lincoln Chafee 0% Undecided/other 22%
Emerson College[35] Margin of error: ± ? Sample size: 487	April 2–8, 2015	Hillary Clinton 56%	Elizabeth Warren 11%	Joe Biden 8% Bernie Sanders 3% Martin O'Malley 2% Jim Webb 1% Andrew Cuomo 0% Other 2% Undecided 17%
Field Poll [36] Margin of error: ± 5% Sample size: 425	January 26 – February 16, 2015	Hillary Clinton 59%	Elizabeth Warren 17%	Joe Biden 9% Bernie Sanders 6% Jim Webb 2% Others <0.5% Undecided 7%

Colorado

Delegate count: 66 Pledged, 13 Unpledged

Winner: Bernie Sanders
Caucus date: March 1, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 1, 2016	Bernie Sanders 59.44%	Hillary Clinton 39.85%	Other 0.71%
Washington Free Beacon/TPC Research[37] Margin of error: ± 3% Sample size: 1144	February 16–17, 2016	Bernie Sanders 49%	Hillary Clinton 43%	Undecided 9%
Quinnipiac University[38] Margin of error: ± 4.9% Sample size: 404	November 11–15, 2015	Hillary Clinton 55%	Bernie Sanders 27%	Martin O'Malley 2% Undecided 15%
Suffolk University[39] Margin of error: ± ? Sample size: 159	September 13–16, 2014	Hillary Clinton 59%	Elizabeth Warren 21%	Joe Biden 8% Andrew Cuomo 4% Martin O’Malley 0% Undecided 6% Other 2% Refused 1%

Connecticut

Delegate count: 55 Pledged, 15 Unpledged

Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source	Date	1st	2nd	Other
Official Primary Results	April 26, 2016	Hillary Clinton 51.8%	Bernie Sanders 46.4%	Others / Uncommitted 1.8%
Public Policy Polling[40] Margin of error: ± 3.7% Sample size: 709	April 22–24, 2016	Hillary Clinton 48%	Bernie Sanders 46%	Others / Undecided 6%
Quinnipiac[41] Margin of error: ± 3.0% Sample size: 1,037	April 12–18, 2016	Hillary Clinton 51%	Bernie Sanders 42%	Others / Undecided 8%
Emerson College[42] Margin of error: ± 5.2% Sample size: 356	April 10–11, 2016	Hillary Clinton 49%	Bernie Sanders 43%	Others / Undecided 3%
Emerson College Polling Society[43] Margin of error: ± 6% Sample size: 251 LV	November 17, 2015	Hillary Clinton 49.6%	Bernie Sanders 30.7%	Martin O’Malley 9.1% Other 3.2% Undecided 6.6%
Quinnipiac University[44] Margin of error: ± 4% Sample size: 610	October 7–11, 2015	Hillary Clinton 35%	Bernie Sanders 25%	Joe Biden 18% Lincoln Chafee 0% Lawrence Lessig 0% Martin O’Malley 0% Jim Webb 0% Other 1% Wouldn't vote 6% Undecided 12%
	October 7–11, 2015	Hillary Clinton 47%	Bernie Sanders 29%	Jim Webb 1% Lincoln Chafee 0% Lawrence Lessig 0% Martin O’Malley 0% Other 1% Wouldn't vote 6% Undecided 16%
Quinnipiac University[45] Margin of error: ± 4.6% Sample size: 459	March 6–9, 2015	Hillary Clinton 53%	Elizabeth Warren 15%	Joe Biden 8% Bernie Sanders 2% Martin O’Malley 1% Jim Webb 1% Other 2% Wouldn't vote 3% Undecided 15%

Delaware

Delegate count: 21 Pledged, 10 Unpledged

Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	April 26, 2016	Hillary Clinton 59.8%	Bernie Sanders 39.2%	Other 1.1%
Gravis Marketing Margin of error: ± 3.1% Sample size: 1,026	April 17–18, 2016	Hillary Clinton 45%	Bernie Sanders 38%	Others / Undecided 17%

Florida

Delegate count: 214 Pledged, 32 Unpledged

Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	March 15, 2016	Hillary Clinton 64.4%	Bernie Sanders 33.3%	Other 2.3%
ARG[46] Margin of error: ± 5.0% Sample size: 400	March 11–13, 2016	Hillary Clinton 58%	Bernie Sanders 37%	Others / Undecided 5%
Quinnipiac[47] Margin of error: ± 4.3% Sample size: 519	March 8–13, 2016	Hillary Clinton 60%	Bernie Sanders 34%	Others / Undecided 6%
Public Policy Polling[48] Margin of error: ± 3.9% Sample size: 627	March 11–12, 2016	Hillary Clinton 57%	Bernie Sanders 32%	Others / Undecided 11%
CBS News/YouGov[49] Margin of error: ± 4.5% Sample size: 796	March 9–11, 2016	Hillary Clinton 62%	Bernie Sanders 34%	Others / Undecided 4%
Florida Atlantic University[50] Margin of error: ± 5% Sample size: 414	March 8–11, 2016	Hillary Clinton 59%	Bernie Sanders 31%	Others / Undecided 10%
NBC News/Wall Street Journal/Marist[51] Margin of error: ± 4.4% Sample size: 500	March 4–10, 2016	Hillary Clinton 61%	Bernie Sanders 34%	Others / Undecided 5%
WTSP/Mason-Dixon[52] Margin of error: ± 4.5% Sample size: 500	March 7–9, 2016	Hillary Clinton 68%	Bernie Sanders 23%	Others / Undecided 9%
Quinnipiac[53] Margin of error: ± 4.3% Sample size: 511	March 2–7, 2016	Hillary Clinton 62%	Bernie Sanders 32%	Others / Undecided 6%
SurveyUSA/Bay News 9/News 13[54] Margin of error: ± 3.4% Sample size: 823	March 4–6, 2016	Hillary Clinton 61%	Bernie Sanders 30%	Others / Undecided 9%
CNN/ORC[55] Margin of error: ± 6.0% Sample size: 264	March 2–6, 2016	Hillary Clinton 61%	Bernie Sanders 34%	Others / Undecided 5%
Wash Post/Univision[56] Margin of error: ± 6.0% Sample size: 449	March 2-5, 2016	Hillary Clinton 64%	Bernie Sanders 26%	Others / Undecided 10%
University of North Florida[57] Margin of error: ± 3.7% Sample size: 685	February 22–27, 2016	Hillary Clinton 54%	Bernie Sanders 24%	Others / Undecided 22%
Public Policy Polling[58] Margin of error: ± 5% Sample size: 388	February 24–25, 2016	Hillary Clinton 57%	Bernie Sanders 32%	Others / Undecided 11%
Gravis Marketing[59] Margin of error: ± 4.3% Sample size: 514	February 24, 2016	Hillary Clinton 58%	Bernie Sanders 42%
Quinnipiac[60] Margin of error: ± 4.5% Sample size: 476	February 21–24, 2016	Hillary Clinton 59%	Bernie Sanders 33%	Others / Undecided 8%
Florida Southern College[61] Margin of error: ± 4.0% Sample Size: 608	January 30 – February 6, 2016	Hillary Clinton 43%	Bernie Sanders 26%	Others / Undecided 31%
Florida Atlantic University[62] Margin of error: ± 5.0% Sample Size: 371	January 15–18, 2016	Hillary Clinton 62%	Bernie Sanders 26%	Martin O'Malley 2% Not Reported

Polls in 2015

Poll source	Date	1st	2nd	Other
Florida Atlantic University[62] Margin of error: ± 5.2% Sample Size: 355	November 15–16, 2015	Hillary Clinton 66%	Bernie Sanders 22%	Martin O'Malley 4% Other 4.5% Undecided 3.7%
Bay News 9/ News13[63] Margin of error: ± 3.9% Sample size: 826	October 28 – November 1, 2015	Hillary Clinton 66%	Bernie Sanders 24%	Martin O'Malley 3% Other 2% Undecided 6%
Saint Leo University Polling Institute[64] Margin of error: ±6.0% Sample size: 165	October 17–22, 2015	Hillary Clinton 50.9%	Joe Biden 15.2%	Bernie Sanders 13.3% Unsure/Don't Know 8.5%
Quinnipiac University[65] Margin of error: ± 4.8% Sample size: 411	September 25 – October 5, 2015	Hillary Clinton 43%	Joe Biden 19%	Bernie Sanders 19% Someone else/Undecided 13%
Public Policy Polling[66] Margin of error: ± 5.1% Sample size: 368	September 11–13, 2015	Hillary Clinton 55%	Bernie Sanders 18%	Joe Biden 17% Martin O'Malley 2% Jim Webb 1% Lincoln Chafee 1% Lawrence Lessig 0% Someone else/Undecided 6%
Gravis Marketing[67] Margin of error: ± 4% Sample size: 693	September 5–11, 2015	Hillary Clinton 41.6%	Joe Biden 21.4%	Bernie Sanders 12.5% Martin O'Malley 1.5% Jim Webb 1.3% Lincoln Chafee 0.4% Unsure 21.3%
Quinnipiac University[68] Margin of error: ± 5% Sample size: 419	Posted September 4, 2015	Hillary Clinton 52%	Bernie Sanders 20%	Joe Biden 15% Lincoln Chafee 4% Martin O'Malley 1% Jim Webb 1% Other 1% Undecided 6%
Quinnipiac University[69] Margin of error: ± 5.3% Sample size: 345	August 7–18, 2015	Hillary Clinton 48%	Bernie Sanders 15%	Joe Biden 11% Martin O'Malley 1% Jim Webb 1% Lincoln Chafee 0% Other 2% Wouldn't vote 6% Undecided 17%
St Pete Polls[70] Margin of error: ± 3.0% Sample size: 1080	July 18–28, 2015	Hillary Clinton 55%	Bernie Sanders 29%	Jim Webb 2% Martin O'Malley 1% Lincoln Chafee <1% Unsure or someone else 13%
Mason-Dixon[71] Margin of error: ± 4.5% Sample size: 500	July 20–23, 2015	Hillary Clinton 58%	Bernie Sanders 17%	Martin O'Malley 2% Lincoln Chafee 0% Jim Webb 0% Undecided 23%
Gravis Marketing[72] Margin of error: ± 3% Sample size: 881	June 16–20, 2015	Hillary Clinton 64.8%	Bernie Sanders 20.6%	Martin O'Malley 2.1% Bill De Blasio 1.7% Jim Webb 0.9% Lincoln Chafee 0.4% Unsure 9.5%
Quinnipiac University[73] Margin of error: ± 5% Sample size: 378	June 4–15, 2015	Hillary Clinton 64%	Joe Biden 9%	Bernie Sanders 8% Martin O'Malley 1% Lincoln Chafee 0% Jim Webb 0% Other 1% Wouldn't vote 5% Undecided 13%
Quinnipiac University[74] Margin of error: ± 5.3% Sample size: 344	March 17–28, 2015	Hillary Clinton 65%	Joe Biden 11%	Elizabeth Warren 7% Bernie Sanders 3% Jim Webb 2% Martin O'Malley 0% Other 1% Wouldn't vote 2% Undecided 10%
	March 17–28, 2015	Joe Biden 42%	Elizabeth Warren 19%	Bernie Sanders 6% Jim Webb 3% Martin O'Malley 1% Other 2% Wouldn't vote 4% Undecided 22%
Public Policy Polling[75] Margin of error: ± 5.1% Sample size: 371	March 19–22, 2015	Hillary Clinton 58%	Joe Biden 14%	Elizabeth Warren 10% Bernie Sanders 3% Martin O'Malley 2% Jim Webb 1% Other/Undecided 11%
[76] Margin of error: ± 5% Sample size: 435	February 24–25, 2015	Hillary Clinton 52%	Elizabeth Warren 14%	Joe Biden 9% Martin O'Malley 2% Mark Warner 2% Jim Webb 2% Undecided 18%
Quinnipiac University[77] Margin of error: ± 5.5% Sample size: 322	January 22 – February 1, 2015	Hillary Clinton 61%	Joe Biden 11%	Elizabeth Warren 9% Bernie Sanders 2% Martin O'Malley 1% Jim Webb 1% Other 2% Wouldn't vote 4% Undecided 10%
	January 22 – February 1, 2015	Joe Biden 39%	Elizabeth Warren 22%	Bernie Sanders 3% Martin O'Malley 2% Jim Webb 2% Other 4% Wouldn't vote 5% Undecided 23%

Polls in 2014

Poll source	Date	1st	2nd	Other
Quinnipiac University[78] Margin of error: ± 4.6% Sample size: 457	July 17–21, 2014	Hillary Clinton 67%	Joe Biden 8%	Elizabeth Warren 8% Andrew Cuomo 1% Martin O'Malley 0% Brian Schweitzer 0% Other 1% Wouldn't vote 3% Undecided 11%
Public Policy Polling[79] Margin of error: ± 6.2% Sample size: 251	June 6–9, 2014	Hillary Clinton 66%	Elizabeth Warren 8%	Joe Biden 7% Cory Booker 5% Andrew Cuomo 4% Mark Warner 1% Kirsten Gillibrand 0% Martin O'Malley 0% Brian Schweitzer 0% Someone else/Undecided 9%
Quinnipiac University[80] Margin of error: ± 4.4% Sample size: 501	April 23–28, 2014	Hillary Clinton 64%	Joe Biden 11%	Elizabeth Warren 6% Andrew Cuomo 1% Martin O'Malley 1% Brian Schweitzer 1% Other 1% Wouldn't vote 3% Undecided 13%
Quinnipiac University[81] Margin of error: ± 4.3% Sample size: 529	January 22–27, 2014	Hillary Clinton 64%	Joe Biden 9%	Elizabeth Warren 5% Andrew Cuomo 1% Martin O'Malley 1% Mark Warner 1% Other 2% Wouldn't vote 2% Undecided 16%

Polls in 2013

Poll source	Date	1st	2nd	Other
Quinnipiac University[82] Margin of error: ± 4.2% Sample size: 544	November 12–17, 2013	Hillary Clinton 70%	Joe Biden 9%	Elizabeth Warren 4% Andrew Cuomo 2% Martin O'Malley 1% Mark Warner 1% Other 2% Wouldn't vote 2% Undecided 10%
Public Policy Polling Margin of error: ± 5.7% Sample size: 300	March 15–18, 2013	Hillary Clinton 62%	Joe Biden 12%	Andrew Cuomo 5% Elizabeth Warren 3% Martin O'Malley 1% Brian Schweitzer 1% Mark Warner 1% Kirsten Gillibrand 0% Deval Patrick 0% Someone Else/Undecided 14%
Public Policy Polling Margin of error: ± 4.9% Sample size: 401	January 11–13, 2013	Hillary Clinton 65%	Joe Biden 15%	Andrew Cuomo 4% Elizabeth Warren 4% Deval Patrick 1% Mark Warner 1% Kirsten Gillibrand 0% Martin O'Malley 0% Brian Schweitzer 0% Someone Else/Undecided 11%
	January 11–13, 2013	Andrew Cuomo 22%	Elizabeth Warren 15%	Deval Patrick 5% Martin O'Malley 4% Kirsten Gillibrand 3% Mark Warner 2% Brian Schweitzer 1% Someone Else/Undecided 48%

Georgia

Delegate count: 102 Pledged, 15 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 1, 2016	Hillary Clinton 71.3%	Bernie Sanders 28.2%	Other 0.5%
SurveyMonkey[83] Margin of error: ± ? Sample size: 961	February 22–29, 2016	Hillary Clinton 59%	Bernie Sanders 36%	Others / Undecided 5%
WSB-TV/Landmark[84] Margin of error: ± 3.5 Sample size: 800	February 28, 2016	Hillary Clinton 70%	Bernie Sanders 23%	Others / Undecided 7%
WSB-TV/Landmark[85] Margin of error: ± 3.5% Sample size: 800	February 26, 2016	Hillary Clinton 68%	Bernie Sanders 22%	Others / Undecided 10%
YouGov/CBS News[86] Margin of error: ± 8.6% Sample size: 492	February 22–26, 2016	Hillary Clinton 63%	Bernie Sanders 35%	Others / Undecided 2%
WABE 90.1[87] Margin of error: ± 4.1% Sample size: 400	February 22–24, 2016	Hillary Clinton 62%	Bernie Sanders 29%	Others / Undecided 9%
TEGNA/SurveyUSA[88] Margin of error: ± 4.2% Sample size: 501	February 22–23, 2016	Hillary Clinton 66%	Bernie Sanders 27%	Others / Undecided 7%
FOX 5 Atlanta[89] Margin of error: ± 4.4% Sample size: 491	February 22–23, 2016	Hillary Clinton 57%	Bernie Sanders 29%	Others / Undecided 14%
NBC News/Wall St. Jrnl[90] Margin of error: ± 4.6% Sample size: 461	February 18–23, 2016	Hillary Clinton 64%	Bernie Sanders 30%	Others / Undecided 6%
WSB-TV/Landmark[91] Margin of error: ± 3.7% Sample size: 700	February 21, 2016	Hillary Clinton 72%	Bernie Sanders 20%	Others / Undecided 8%
Public Policy Polling[92] Margin of error: ± 4.4% Sample size: 500	February 14–16, 2016	Hillary Clinton 60%	Bernie Sanders 26%
Landmark/RosettaStone Margin of error: ± 4.0% Sample size: 600	February 4, 2016	Hillary Clinton 63.3%	Bernie Sanders 21.5%	Undecided 15.2%
WXIA-TV/SurveyUSA[93] Margin of error: ± 4.8% Sample size: 2075	October 15–26, 2015	Hillary Clinton 73%	Bernie Sanders 16%	Martin O'Malley 4% Undecided 5%
Opinion Savvy[94] Margin of error: ± 4.8 Sample size: 413	Published September 3, 2015	Hillary Clinton 51%	Bernie Sanders 24%	Joe Biden 15% Lincoln Chafee 5% Martin O'Malley 0% Jim Webb 0% Someone else 1% Undecided 5%

Hawaii

Delegate count: 53 Pledged, 7 Unpledged Delegate count: 25 Pledged, 9 Unpledged

Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source	Date	1st	2nd
Caucus results	April 26, 2016	Bernie Sanders 69.8%	Hillary Clinton 30.0%

No polls were conducted for the Hawaii Democratic caucuses

Idaho

Delegate count: 23 Pledged, 4 Unpledged

Winner: Bernie Sanders
Caucus date: March 22, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 24, 2016	Bernie Sanders 78.04%	Hillary Clinton 21.21%	Other 0.75%
Dan Jones & Associates [95] Margin of error: ± 4.0% Sample size: 601	February 17–26, 2016	Bernie Sanders 47%	Hillary Clinton 45%
Dan Jones & Associates [96] Margin of error: ± 4.02% Sample size: 595	October 28 – November 4, 2015	Hillary Clinton 55%	Bernie Sanders 35%	Other candidates 4% Don't know 6%
Dan Jones & Associates[97] Margin of error: ± 4% Sample size: 586	September 22–30, 2015	Hillary Clinton 38%	Bernie Sanders 36%	Joe Biden 16% Other/DK/NR 10%
Dan Jones & Associates[98] Margin of error: ± ? Sample size: ?	Published August 9, 2015	Hillary Clinton 44%	Bernie Sanders 22%	Joe Biden 15% Other/DK/NR 19%
Idaho Politics Weekly[99] Margin of error: ± ? Sample size: ?	June 17 – July 1, 2015	Hillary Clinton 19%	Bernie Sanders 12%	Joe Biden 10% Someone else 18% Don't know 32%

Illinois

Delegate count: 156 Pledged, 26 Unpledged

Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 15, 2016	Hillary Clinton 50.6%	Bernie Sanders 48.6%	Others 0.8%
McKeon & Associates[100] Margin of error: ± 4.1% Sample size: 428	March 12, 2016	Hillary Clinton 31%	Bernie Sanders 30%	Others / Undecided 39%
Public Policy Polling[101] Margin of error: ± 3.9% Sample size: 627	March 11–12, 2016	Hillary Clinton 48%	Bernie Sanders 45%	Others / Undecided 7%
CBS News/YouGov[102] Margin of error: ± 5.5% Sample size: 756	March 9–11, 2016	Bernie Sanders 48%	Hillary Clinton 46%	Others / Undecided 6%
NBC News/Wall Street Journal/Marist[103] Margin of error: ± 4.3% Sample size: 529	March 4–10, 2016	Hillary Clinton 51%	Bernie Sanders 45%	Others / Undecided 4%
We Ask America[104] Margin of error: ± 3.11% Sample size: 994	March 7–8, 2016	Hillary Clinton 62%	Bernie Sanders 25%	Others / Undecided 13%
Chicago Tribune[105] Margin of error: ±4.1% Sample size: 600	March 2–6, 2016	Hillary Clinton 67%	Bernie Sanders 25%	Others / Undecided 8%
We Ask America[106] Margin of error: ± 3.0 Sample size: 1,116	February 24, 2016	Hillary Clinton 57%	Bernie Sanders 28%	Others / Undecided 15%
The Simon Poll/SIU[107] Margin of error: ± 5.6 Sample size: 306	February 15–20, 2016	Hillary Clinton 51%	Bernie Sanders 32%	Others / Undecided 17%
The Illinois Observer[108] Margin of error: ± 4.23 Sample size: 560	February 11, 2016	Hillary Clinton 58%	Bernie Sanders 25%	Others / Undecided 18%
Public Policy Polling[109] Margin of error: ± 4.9% Sample size: 409	July 20–21, 2015	Hillary Clinton 60%	Bernie Sanders 23%	Others / Undecided 17%

Indiana

Delegate count: 83 Pledged, 9 Unpledged

Winner: Bernie Sanders
Primary date: May 3, 2016

Poll source	Date	1st	2nd	Other
Official Primary Results	May 3, 2016	Bernie Sanders 52.5%	Hillary Clinton 47.5%
ARG[110] Margin of error: ± 5% Sample size: 400	April 27–28, 2016	Hillary Clinton 51%	Bernie Sanders 43%	Others / Undecided 6%
NBC/WSJ/Marist[111] Margin of error: ± 3.9% Sample size: 645	April 26–28, 2016	Hillary Clinton 50%	Bernie Sanders 46%	Others / Undecided 4%
IPFW/Mike Downs Center[112] Margin of error: ± 4.9% Sample size: 400	April 13–27, 2016	Hillary Clinton 55%	Bernie Sanders 40%	Others / Undecided 5%
IPFW/Downs Center[113] Margin of error: ± 4.9% Sample size: 400	April 18–23, 2016	Hillary Clinton 54%	Bernie Sanders 41%	Others / Undecided 5%
CBS/YouGov[114] Margin of error: ± 8.2% Sample size: 439	April 20–22, 2016	Hillary Clinton 49%	Bernie Sanders 44%	Others / Undecided 7%
FOX News[115] Margin of error: ± 4% Sample size: 603	April 18–21, 2016	Hillary Clinton 46%	Bernie Sanders 42%	Others / Undecided 12%
WTHR News[116] Margin of error: ± 4.47% Sample size: 500	April 18–21, 2016	Hillary Clinton 48%	Bernie Sanders 45%	Others / Undecided 7%

Iowa

Delegate count: 44 Pledged, 8 Unpledged

Winner: Hillary Clinton
Caucus date: February 1, 2016

Poll source	Date	1st	2nd	Other
Caucus results	February 1, 2016	Hillary Clinton 49.9%	Bernie Sanders 49.6%	Martin O'Malley 0.6%
Emerson College[117] Margin of error: ± 5.6% Sample size: 300	January 29–31, 2016	Hillary Clinton 51%	Bernie Sanders 43%	Martin O'Malley 4% Undecided 2%
Quinnipiac University[118] Margin of error: ± 3.2% Sample size: 919	January 25–31, 2016	Bernie Sanders 49%	Hillary Clinton 46%	Martin O'Malley 3% Undecided 2%
Des Moines Register– Bloomberg–Selzer[119] Margin of error: ± 4% Sample size: 602	January 26–29, 2016	Hillary Clinton 45%	Bernie Sanders 42%	Martin O'Malley 3% Undecided or Not Committed 9%
Public Policy Polling[120] Margin of error ± 3.4% Sample size: 851	January 26–27, 2016	Hillary Clinton 48%	Bernie Sanders 40%	Martin O'Malley 7% No preference 5%
Gravis Marketing[121] Margin of error ± 3% Sample size: 810	January 26–27, 2016	Hillary Clinton 53%	Bernie Sanders 42%	Martin O'Malley 5% No preference 0%
Monmouth University[122] Margin of error ± 4.4% Sample size: 504	January 23–26, 2016	Hillary Clinton 47%	Bernie Sanders 42%	Martin O'Malley 6% Undecided 5%
American Research Group[123] Margin of error ± 5.0% Sample size: 400	January 21–24, 2016	Bernie Sanders 48%	Hillary Clinton 45%	Martin O'Malley 3% No preference 4%
Quinnipiac University[124] Margin of error: ± 4% Sample size: 606	January 18–24, 2016	Bernie Sanders 49%	Hillary Clinton 45%	Martin O'Malley 4% Undecided 2%
ISU/WHO-HD[125] Margin of error: ± Sample size: 356	January 5–22, 2016	Hillary Clinton 47%	Bernie Sanders 45%	Martin O'Malley <1% Undecided 7%
Fox News[126] Margin of error ± 4.5% Sample size: 432	January 18–21, 2016	Hillary Clinton 48%	Bernie Sanders 42%	Martin O'Malley 3% No preference 7%
YouGov/CBS News[127] Margin of error ± 8.9% Sample size: 906	January 17–21, 2016	Bernie Sanders 47%	Hillary Clinton 46%	Martin O'Malley 5% No preference 2%
Emerson College Polling Society[128] Margin of error: ± 5.9% Sample size: 271	January 18–20, 2016	Hillary Clinton 52%	Bernie Sanders 43%	Martin O'Malley 3% Undecided 2%
CNN/ORC[129] Margin of error: ± 6% Sample size: 280	January 15–20, 2016	Bernie Sanders 51%	Hillary Clinton 43%	Martin O'Malley 4% Undecided 2%
Monmouth College/KBUR[130] Margin of error: ± 4.1% Sample size: 500	January 18–19, 2016	Hillary Clinton 47.7%	Bernie Sanders 39.3%	Martin O'Malley 7.4% Undecided 5%
Loras College[131] Margin of error: ± 4.4% Sample size: 580	January 8–10, 2016	Hillary Clinton 46%	Bernie Sanders 40%	Martin O'Malley 8% Undecided 5%
Public Policy Polling[132] Margin of error: ± 4.1% Sample size: 580	January 8–10, 2016	Hillary Clinton 46%	Bernie Sanders 40%	Martin O'Malley 8% Undecided 5%
Bloomberg/DMR[133] Margin of error: ± 4.4% Sample size: 503	January 7–10, 2016	Hillary Clinton 42%	Bernie Sanders 40%	Martin O'Malley 4% Other/Undecided 14%
American Research Group[134] Margin of error: ± 4.0% Sample size: 600	January 6–10, 2016	Bernie Sanders 47%	Hillary Clinton 44%	Martin O'Malley 3% Undecided 5%
Quinnipiac University[135] Margin of error: ± 4.4% Sample size: 492	January 5–10, 2016	Bernie Sanders 49%	Hillary Clinton 44%	Martin O'Malley 4% Undecided 3%
Mason-Dixon/AARP[136] Margin of error: ± Sample size: 503	January 4–8, 2016	Hillary Clinton 49%	Bernie Sanders 42%	Martin O’Malley 5% Not Reported 4%
NBC News/WSJ/Marist[137] Margin of error: ± 4.8% Sample size: 422	January 2–7, 2016	Hillary Clinton 48%	Bernie Sanders 45%	Martin O’Malley 5% Undecided 3%

Polls in 2015

Poll source	Date	1st	2nd	Other
Gravis Marketing[138] Margin of error ± 5% Sample Size: 418	December 18–21, 2015	Hillary Clinton 49%	Bernie Sanders 31%	Martin O'Malley 10% Unsure 10%
YouGov/CBS News[139] Margin of error ± 5.3% Sample Size: 1252	December 14–17, 2015	Hillary Clinton 50%	Bernie Sanders 45%	Martin O'Malley 4% No preference 1%
Public Policy Polling[140] Margin of error: ± 4.3% Sample Size: 526	December 10–13, 2015	Hillary Clinton 52%	Bernie Sanders 34%	Martin O'Malley 7% Undecided 6%
Quinnipiac University[141] Margin of error: ± 3.6% Sample Size: 727	December 4–13, 2015	Hillary Clinton 51%	Bernie Sanders 40%	Martin O'Malley 6% Undecided 3%
Fox News[142] Margin of error: ± 5.0% Sample Size: 357	December 7–10, 2015	Hillary Clinton 50%	Bernie Sanders 36%	Martin O'Malley 5% Other 4% Undecided 10%
Loras College[143] Margin of error: ± 4.4 Sample Size: 501	December 7–10, 2015	Hillary Clinton 59%	Bernie Sanders 27%	Martin O'Malley 4% Undecided 10%
Des Moines Register/Bloomberg/Selzer[144] Margin of error ± 4.9% Sample Size: 404	December 7–10, 2015	Hillary Clinton 48%	Bernie Sanders 39%	Martin O'Malley 4% Undeicded 8%
Monmouth[145] Margin of error ± 4.9% Sample Size: 405	December 3–6, 2015	Hillary Clinton 55%	Bernie Sanders 33%	Martin O'Malley 6%
CNN/ORC[145] Margin of error ± 4.5% Sample Size: 442	November 28 – December 6, 2015	Hillary Clinton 54%	Bernie Sanders 36%	Martin O'Malley 4%
Quinnipiac University[146] Margin of error ± 4.2% Sample Size: 543	November 16–22, 2015	Hillary Clinton 51%	Bernie Sanders 42%	Martin O'Malley 4% Undecided 3%
YouGov/CBS News[147] Margin of error ± 7.6% Sample Size: 602	November 15–19, 2015	Hillary Clinton 50%	Bernie Sanders 44%	Martin O'Malley 5% Undecided 1%
CNN/ORC[148] Margin of error ± 4.5% Sample Size: 498	October 29 – November 4, 2015	Hillary Clinton 55%	Bernie Sanders 37%	Martin O'Malley 3% None 1% No Opinion 3%
Gravis Marketing/One America News Network[149] Margin of error ± 3.0% Sample Size: 272	October 30 – November 2, 2015	Hillary Clinton 57.1%	Bernie Sanders 24.8%	Martin O'Malley 2.9% Not Sure 15.2%
Public Policy Polling[150] Margin of error ± 3.9% Sample Size: 615	October 30 – November 1, 2015	Hillary Clinton 57%	Bernie Sanders 25%	Martin O'Malley 7% Lawrence Lessig 1% Not Sure 9%
KBUR-Monmouth[151] Margin of error: ± 3.76% Sample size: 681	October 29–31, 2015	Hillary Clinton 45.8%	Bernie Sanders 31.7%	Martin O'Malley 5.4% Undecided 17.0%
Monmouth University[152] Margin of error ± 3.76% Sample size: 681	October 29–31, 2015	Hillary Clinton 45.8%	Bernie Sanders 31.7%	Martin O'Malley 5.4% Undecided 17%
Monmouth University[153] Margin of error ± 4.9% Sample size: 400	October 22–25, 2015	Hillary Clinton 65%	Bernie Sanders 24%	Martin O'Malley 5% Lawrence Lessig 1% Undecided 5%
YouGov/CBS News[154] Margin of error ± 6.9% Sample size: 555	October 15–22, 2015	Hillary Clinton 46%	Bernie Sanders 43%	Martin O'Malley 3% Lincoln Chafee 1% Lawrence Lessig 0% No preference 7%
Des Moines Register/Bloomberg Politics[155] Margin of error ± 4.9% Sample size: 402	October 16–19, 2015	Hillary Clinton 48%	Bernie Sanders 41%	Martin O'Malley 2% Jim Webb 1% Lincoln Chafee 1% Uncommited 3% Not Sure 4%
NBC News/WSJ/Marist[156] Margin of error: ± 5.3% Sample size: 348	September 23–30, 2015	Hillary Clinton 33%	Bernie Sanders 28%	Joe Biden 22% Martin O'Malley 3% Jim Webb 1% Lincoln Chafee <1% Undecided 12%
	September 23–30, 2015	Hillary Clinton 47%	Bernie Sanders 36%	Martin O'Malley 4% Jim Webb 1% Lincoln Chafee <1% Undecided 13%
Public Policy Polling[157] Margin of error ± 4.4% Sample size: 494	September 18–20, 2015	Hillary Clinton 43%	Bernie Sanders 22%	Joe Biden 17% Martin O'Malley 3% Jim Webb 3% Lincoln Chafee 2% Lawrence Lessig 0% Undecided 9%
YouGov/CBS News[158] Margin of error ± 6.6% Sample size: 646	September 3–10, 2015	Bernie Sanders 43%	Hillary Clinton 33%	Joe Biden 10% No preference 7% Martin O'Malley 5% Lincoln Chafee 1% Jim Webb 1%
Quinnipiac University[159] Margin of error: ± 3.4% Sample size: 832	Posted September 10, 2015	Bernie Sanders 41%	Hillary Clinton 40%	Joe Biden 12% Martin O'Malley 3%
NBC News/Marist Poll[160] Margin of error: ± 5.3% Sample size: 345	Published September 6, 2015	Hillary Clinton 38%	Bernie Sanders 27%	Joe Biden 20% Martin O'Malley 4% Jim Webb 2% Lincoln Chafee 1% Undecided 8%
	Published September 6, 2015	Hillary Clinton 48%	Bernie Sanders 37%	Martin O'Malley 4% Jim Webb 2% Lincoln Chafee 1% Undecided 8%
Loras College[161] Margin of error ± 4.37% Sample size: 502	August 24–27, 2015	Hillary Clinton 48.2%	Bernie Sanders 22.9%	Joe Biden 16.3% Martin O'Malley 4% Lincoln Chafee 0.6% Jim Webb 0.4% Undecided 6.4%
Selzer & Co. of Des Moines[162] Margin of error: ± 4.9% Sample size: 404	August 23–26, 2015	Hillary Clinton 43%	Bernie Sanders 35%	Martin O'Malley 5% Jim Webb 2% Lincoln Chafee 1% Not sure 8% Uncommitted 6%
	August 23–26, 2015	Hillary Clinton 37%	Bernie Sanders 30%	Joe Biden 14% Martin O'Malley 3% Jim Webb 2% Lincoln Chafee 1% Not sure 8% Uncommitted 6%
Suffolk University[163] Margin of error: ± 4.4% Sample size: 500	August 20–24, 2015	Hillary Clinton 54%	Bernie Sanders 20%	Joe Biden 11% Martin O'Malley 4% Jim Webb 1% Lincoln Chafee 0% Undecided 9%
CNN/ORC[164] Margin of error: ± 4.5% Sample size: 429	August 7–11, 2015	Hillary Clinton 50%	Bernie Sanders 31%	Joe Biden 12% Martin O'Malley 1% Jim Webb 1% Lincoln Chafee 0% Not sure 11%
Public Policy Polling[165] Margin of error: ± 4.1% Sample size: 567	August 7–9, 2015	Hillary Clinton 52%	Bernie Sanders 25%	Martin O'Malley 7% Jim Webb 3% Lincoln Chafee 1% Not sure 11%
NBC News/Marist[166] Margin of error: ± 5.5% Sample size: 320	July 14–21, 2015	Hillary Clinton 49%	Bernie Sanders 25%	Joe Biden 10% Martin O'Malley 3% Jim Webb 1% Lincoln Chafee <1% Undecided 11%
We Ask America[167] Margin of error: 3.07% Sample size: 1,022	June 27–29, 2015	Hillary Clinton 63%	Bernie Sanders 20%	Martin O'Malley 5% Jim Webb 3% Lincoln Chafee 1% Undecided 8%
Quinnipiac University[168] Margin of error: 3.6% Sample size: 761	June 20–29, 2015	Hillary Clinton 52%	Bernie Sanders 33%	Joe Biden 7% Martin O'Malley 3% Jim Webb 1% Lincoln Chafee 0% Undecided 5%
Bloomberg Margin of error: 4.9% Sample size: 401	June 19–22, 2015	Hillary Clinton 50%	Bernie Sanders 24%	Martin O'Malley 2% Lincoln Chafee 0% Undecided 23%
Morning Consult Margin of error: ? Sample size: 322	May 31 – June 8, 2015	Hillary Clinton 54%	Bernie Sanders 12%	Joe Biden 9% Martin O'Malley 1% Jim Webb 1% Lincoln Chafee 0% Other 3% Undecided 20%
Gravis Marketing Margin of error: ± 5.0% Sample size: 434	May 28–29, 2015	Hillary Clinton 59%	Bernie Sanders 15%	Martin O'Malley 3% Jim Webb 2% Bill DeBlasio 2% Lincoln Chafee 1% Unsure 17%
Bloomberg/Des Moines Margin of error: ± 4.7% Sample size: 437	May 25–29, 2015	Hillary Clinton 57%	Bernie Sanders 16%	Joe Biden 8% Martin O'Malley 2% Jim Webb 2% Uncommitted 6% Not sure 8%
Quinnipiac University Margin of error: ± 3.7% Sample size: 692	April 25 – May 4, 2015	Hillary Clinton 60%	Bernie Sanders 15%	Joe Biden 11% Martin O'Malley 3% Jim Webb 3% Lincoln Chafee 0% Undecided 7%
Public Policy Polling Margin of error: ± 4.5% Sample size: 466	April 23–26, 2015	Hillary Clinton 62%	Bernie Sanders 14%	Martin O'Malley 6% Jim Webb 3% Lincoln Chafee 2% Undecided 13%
Loras College Margin of error: ± 4.4% Sample size: 491	April 21–23, 2015	Hillary Clinton 57%	Elizabeth Warren 14.7%	Joe Biden 5.9% Martin O'Malley 2.4% Bernie Sanders 2% Jim Webb 1.2% Lincoln Chafee 0% Undecided 16.7%
Quinnipiac Margin of error: ± 3.9% Sample size: 619	February 16–23, 2015	Hillary Clinton 61%	Elizabeth Warren 19%	Joe Biden 7% Bernie Sanders 5% Jim Webb 2% Martin O'Malley 0% Undecided 6%
NBC News/Marist Margin of error: ± 5.5% Sample size: 321	February 3–10, 2015	Hillary Clinton 68%	Joe Biden 12%	Bernie Sanders 7% Jim Webb 1% Martin O'Malley <1% Undecided 12%
Selzer & Co. Margin of error: ± 4.9% Sample size: 401	January 26–29, 2015	Hillary Clinton 56%	Elizabeth Warren 16%	Joe Biden 9% Bernie Sanders 5% Jim Webb 3% Martin O'Malley 1% Uncommitted 4% Not sure 6%
Loras College Margin of error: ± 6.06% Sample size: 261	January 21–26, 2015	Hillary Clinton 48.3%	Elizabeth Warren 16.5%	Joe Biden 12.6% Bernie Sanders 3.8% Jim Webb 2.3% Martin O'Malley 0.4% Undecided 16.1%

Polls in 2014

Poll source	Date	1st	2nd	Other
Fox News Margin of error: ± 5% Sample size: 352	October 28–30, 2014	Hillary Clinton 62%	Elizabeth Warren 14%	Joe Biden 10% Andrew Cuomo 2% Martin O'Malley 2% Other 1% None of the above 2% Don't know 6%
Reuters/Ipsos Margin of error: ± ? Sample size: 552	October 23–29, 2014	Hillary Clinton 60%	Elizabeth Warren 17%	Joe Biden 4% Andrew Cuomo 3% Bernie Sanders 2% Kirsten Gillibrand 1% Martin O'Malley 1% Wouldn't vote 12%
Selzer & Co. Margin of error: ± 4.8% Sample size: 426	October 1–7, 2014	Hillary Clinton 53%	Elizabeth Warren 10%	Joe Biden 9% John Kerry 7% Bernie Sanders 3% Andrew Cuomo 1% Brian Schweitzer 1% Jim Webb 1% Martin O'Malley 0% Uncommitted 3% Not sure 12%
CNN/ORC Margin of error: ± 5.5% Sample size: 309	September 8–10, 2014	Hillary Clinton 53%	Joe Biden 15%	Elizabeth Warren 7% Bernie Sanders 5% Andrew Cuomo 3% Martin O'Malley 2% Deval Patrick 1% Someone else 1% None/No opinion 15%
Suffolk Margin of error: ± 7.09% Sample size: 191	August 23–26, 2014	Hillary Clinton 66.49%	Elizabeth Warren 9.95%	Joe Biden 7.85% Andrew Cuomo 4.19% Martin O'Malley 2.09% Undecided 7.85%
NBC News/Marist Margin of error: ± 4.2% Sample size: 539	July 7–13, 2014	Hillary Clinton 70%	Joe Biden 20%	Undecided 10%
Vox Populi Polling Margin of error: ± 6.6% Sample size: 223	June 4–5, 2014	Hillary Clinton 65%	Joe Biden 18%	Elizabeth Warren 12% Andrew Cuomo 3% Martin O'Malley 2%
Public Policy Polling Margin of error: ±5.2% Sample size: 356	May 15–19, 2014	Hillary Clinton 59%	Joe Biden 12%	Elizabeth Warren 11% Cory Booker 3% Andrew Cuomo 3% Mark Warner 2% Kirsten Gillibrand 1% Martin O'Malley 1% Brian Schweitzer 1% Someone else/Not sure 8%
		Joe Biden 34%	Elizabeth Warren 22%	Andrew Cuomo 7% Cory Booker 4% Kirsten Gillibrand 3% Martin O'Malley 2% Brian Schweitzer 1% Mark Warner 1% Someone else/Not sure 26%
		Elizabeth Warren 31%	Andrew Cuomo 14%	Cory Booker 9% Kirsten Gillibrand 5% Martin O'Malley 2% Mark Warner 2% Brian Schweitzer 1% Someone else/Not sure 36%
Suffolk Margin of error: ± 8.4% Sample size: 135	April 3–8, 2014	Hillary Clinton 62.96%	Elizabeth Warren 11.85%	Joe Biden 9.63% Mark Warner 1.48% Andrew Cuomo 0.74% Deval Patrick 0.74% Cory Booker 0% Undecided 11.85%
Public Policy Polling Margin of error: ±5.4% Sample size: 335	February 20–23, 2014	Hillary Clinton 67%	Joe Biden 12%	Elizabeth Warren 5% Mark Warner 3% Andrew Cuomo 2% Cory Booker 1% Kirsten Gillibrand 0% Martin O'Malley 0% Brian Schweitzer 0% Someone Else/Undecided 10%
		Joe Biden 40%	Elizabeth Warren 13%	Andrew Cuomo 8% Martin O'Malley 5% Cory Booker 2% Kirsten Gillibrand 2% Mark Warner 2% Brian Schweitzer 1% Someone Else/Undecided 28%
		Elizabeth Warren 21%	Andrew Cuomo 11%	Cory Booker 8% Martin O'Malley 6% Kirsten Gillibrand 3% Brian Schweitzer 2% Mark Warner 2% Someone Else/Undecided 47%

Polls in 2013

Poll source	Date	1st	2nd	Other
Cygnal Margin of error: ±2.1% Sample size: 2,175	July 10–12, 2013	Hillary Clinton 55.6%	Joe Biden 7.8%	Elizabeth Warren 5% Andrew Cuomo 1.1% Kirsten Gillibrand 0.5% Martin O'Malley 0.2% Unsure 29.7%
Public Policy Polling Margin of error: ±6.1% Sample size: 260	July 5–7, 2013	Hillary Clinton 71%	Joe Biden 12%	Elizabeth Warren 5% Kirsten Gillibrand 2% Mark Warner 2% Cory Booker 1% Andrew Cuomo 1% Martin O'Malley 1% Brian Schweitzer 0% Someone Else/Undecided 5%
		Joe Biden 51%	Elizabeth Warren 16%	Andrew Cuomo 9% Cory Booker 6% Kirsten Gillibrand 2% Martin O'Malley 2% Mark Warner 1% Brian Schweitzer 0% Someone Else/Undecided 13%
		Elizabeth Warren 20%	Andrew Cuomo 18%	Cory Booker 12% Kirsten Gillibrand 7% Martin O'Malley 4% Brian Schweitzer 3% Mark Warner 2% Someone Else/Undecided 33%
Public Policy Polling Margin of error: ±5.5% Sample size: 313	February 1–3, 2013	Hillary Clinton 68%	Joe Biden 21%	Andrew Cuomo 2% Mark Warner 2% Elizabeth Warren 2% Deval Patrick 1% Kirsten Gillibrand 0% Martin O'Malley 0% Brian Schweitzer 0% Someone Else/Undecided 3%
		Joe Biden 58%	Andrew Cuomo 13%	Elizabeth Warren 7% Kirsten Gillibrand 6% Deval Patrick 3% Mark Warner 2% Brian Schweitzer 1% Martin O'Malley 0% Someone Else/Undecided 11%
		Andrew Cuomo 26%	Elizabeth Warren 17%	Martin O'Malley 8% Kirsten Gillibrand 5% Deval Patrick 3% Brian Schweitzer 2% Mark Warner 2% Someone Else/Undecided 37%
Harper Polling Margin of error: Sample size: 183	January 29, 2013	Hillary Clinton 65.38%	Joe Biden 13.74%	Andrew Cuomo 3.85% Undecided 17.03%

Kansas

Delegate count: 33 Pledged, 4 Unpledged

Winner: Bernie Sanders
Caucus date: March 5, 2016

Poll source	Date	1st	2nd	3rd	Other
Caucus results	March 5, 2016	Bernie Sanders 67.9%	Hillary Clinton 32.1%	Uncommitted 0.0%
Fort Hays State University[169] Margin of error: ± 5.0 Sample size: 440	February 19–26, 2016	Hillary Clinton 33%	Bernie Sanders 23%		Undecided 44%
Suffolk University[170] Margin of error: ± ? Sample size: 118	September 27–30, 2014	Hillary Clinton 62%	Elizabeth Warren 14%	Joe Biden 4%	Andrew Cuomo 4%, Martin O'Malley 1%, Other 2%, Undecided/Refused 14%

Kentucky

Delegate count: 55 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: May 17, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	May 17, 2016	Hillary Clinton 46.8%	Bernie Sanders 46.3%		Others / Uncommitted 6.9%
Public Policy Polling[171] Margin of error: ± 4.4% Sample size: 501	March 1–2, 2016	Hillary Clinton 43%	Bernie Sanders 38%		Others / Undecided 19%
Public Policy Polling[172] Margin of error: ± 4% Sample size: 610	June 18–21, 2015	Hillary Clinton 56%	Bernie Sanders 12%	Jim Webb 7%	Lincoln Chafee 5%, Martin O'Malley 3%, Not sure 18%

Louisiana

Delegate count: 51 Pledged, 8 Unpledged

Winner: Hillary Clinton
Primary date: March 5, 2016

Poll source	Date	1st	2nd	3rd	Other
Certified Primary results	March 5, 2016	Hillary Clinton 71.1%	Bernie Sanders 23.2%		Others 5.7%
Magellan Strategies[173] Margin of error: ± 3.3% Sample size: 865	March 1, 2016	Hillary Clinton 61%	Bernie Sanders 14%		Others / Undecided 25%
Public Policy Polling[174] Margin of error: ± 4.4 Sample size: 500	February 14–16, 2016	Hillary Clinton 60%	Bernie Sanders 29%
WWL-TV-Clarus[175] Margin of error: ? Sample size: ?	September 20–23, 2015	Hillary Clinton 57%	Joe Biden 22%	Bernie Sanders 7%	Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%

Maine

Delegate count: 25 Pledged, 5 Unpledged

Winner: Bernie Sanders
Primary date: March 6, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 6, 2016	Bernie Sanders 64.3	Hillary Clinton 35.5%	Other 0.2%
Critical Insights[176] Margin of error: 4% Sample size: 600	September 24–30, 2015	Bernie Sanders 28%	Hillary Clinton 27%	Other/DK/NR 45%

Maryland

Delegate count: 95 Pledged, 23 Unpledged

Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	April 26, 2016	Hillary Clinton 62.5%	Bernie Sanders 33.8%	Others / Uncommitted 3.7%
ARG[177] Margin of error: ± 5.0% Sample size: 400	April 21-24, 2016	Hillary Clinton 50%	Bernie Sanders 44%	Others / Undecided 6%
Monmouth[178] Margin of error: ± 5.7% Sample size: 300	April 18-20, 2016	Hillary Clinton 57%	Bernie Sanders 32%	Others / Undecided 11%
Public Policy Polling[179] Margin of error: ± 4.4% Sample size: 492	April 15-17, 2016	Hillary Clinton 58%	Bernie Sanders 33%	Others / Undecided 9%
NBC 4/Marist[180] Margin of error: ± 3.5% Sample size: 775	April 5-9, 2016	Hillary Clinton 58%	Bernie Sanders 36%	Others / Undecided 6%
University of Maryland/Washington Post[181] Margin of error: ± 5.5% Sample size: 539	March 30 - April 4, 2016	Hillary Clinton 55%	Bernie Sanders 40%	Others / Undecided 5%
Baltimore Sun[182] Margin of error: ± 4.9% Sample size: 400	March 4-8, 2016	Hillary Clinton 61%	Bernie Sanders 28%	Others / Undecided 11%
Gonzales/Arscott Research[183] Margin of error: ± 5.0 Sample size: 411	February 29-March 4, 2016	Hillary Clinton 57%	Bernie Sanders 26%	Others / Undecided 17%
Goucher[184] Margin of error: ± 3.5 Sample size: 794	February 13–18, 2016	Hillary Clinton 58%	Bernie Sanders 28%	Others / Undecided 14%
Baltimore Sun/University of Baltimore Margin of error: ± 5% Sample size: 402	January 11–16, 2016	Hillary Clinton 40%	Bernie Sanders 27%	Others / Undecided 33%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Baltimore Sun/University of Baltimore Margin of error: ± 4.8% Sample size: 419	November 13–17, 2015	Hillary Clinton 56%	Bernie Sanders 23%	Martin O'Malley 7%	Other/Unsure 14%
Washington Post Margin of error: ± 5% Sample size: 490	October 8–11, 2015	Hillary Clinton 43%	Joe Biden 26%	Bernie Sanders 20%	Martin O'Malley 4%, Jim Webb 1%, Lincoln Chafee 0%, None/Any/Other 3%, No Opinion 2%
Goucher[185] Margin of error: ± 5.7% Sample size: 300	September 26 – October 1, 2015	Hillary Clinton 43%	Joe Biden 23%	Bernie Sanders 17%	Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 0%, None/Any/Other 2%, Undecided 11%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Washington Post[186] Margin of error: ± 5% Sample size: 538	February 13–16, 2014	Hillary Clinton 72%	Joe Biden 9%	Martin O'Malley 6%	Elizabeth Warren 3%, Andrew Cuomo 2%, None 1%, Undecided 7%
Baltimore Sun Margin of error: ± 4.4% Sample size: 500	February 8–12, 2014	Hillary Clinton 59%	Joe Biden 14%	Martin O'Malley 6%	Andrew Cuomo 4%, Undecided/Other 17%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
Washington Post Margin of error: Sample size:	February 21–24, 2013	Hillary Clinton 56%	Joe Biden 18%	Martin O'Malley 8%	Andrew Cuomo 4%, None/other/any of them 4%, No opinion 9%

Massachusetts

Delegate count: 91 Pledged, 25 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	3rd	Other
Primary results	March 1, 2016	Hillary Clinton 49.7%	Bernie Sanders 48.3%		Others / Uncommitted 2.0%
SurveyMonkey[187] Margin of error: ± ? Sample size: 1,224	February 22–29, 2016	Hillary Clinton 48%	Bernie Sanders 46%		Others / Undecided 6%
Emerson College[188] Margin of error: ± 3.7% Sample size: 670	February 26–28, 2016	Hillary Clinton 54%	Bernie Sanders 43%		Others / Undecided 3%
Suffolk University[189] Margin of error: ± 4.4% Sample size: 500	February 25–27, 2016	Hillary Clinton 50%	Bernie Sanders 42%		Others / Undecided 8%
WBZ-UMass Amherst[190] Margin of error: ± 6.5% Sample size: 400	February 19–25, 2016	Hillary Clinton 47%	Bernie Sanders 44%		Others / Undecided 9%
WBUR[191] Margin of error: ± 4.9% Sample size: 418	February 21–23, 2016	Hillary Clinton 49%	Bernie Sanders 44%		Others / Undecided 7%
Emerson College[192] Margin of error: ± 4.75% Sample size: 417	February 19–21, 2016	Hillary Clinton 46%	Bernie Sanders 46%		Undecided 5%
Public Policy Polling[193] Margin of error: ± 4.2 Sample Size: 538	February 14–16, 2016	Bernie Sanders 49%	Hillary Clinton 42%		Undecided 9%
Emerson College Margin of error: ± 6.0% Sample size: 265	October 16–18, 2015	Hillary Clinton 59%	Bernie Sanders 25%	Jim Webb 5%	Martin O'Malley 3%, Lincoln Chafee 3%, Other 2%, Undecided 3%
Emerson College[194] Margin of error: ± ? Sample size: 430	March 14–19, 2015	Hillary Clinton 43%	Elizabeth Warren 16%	Joe Biden 10%	Bernie Sanders 6%, Martin O'Malley 2%, Other/Undecided 24%
Gravis Marketing Margin of error: ± 4% Sample size: 358	January 19–21, 2015	Hillary Clinton 46%	Elizabeth Warren 22%		Undecided 32%
Suffolk University Margin of error: ± 4.9% Sample size: 400	August 21–24, 2014	Hillary Clinton 55%	Elizabeth Warren 17.25%	Joe Biden 7.75%	Andrew Cuomo 4.75%, Martin O'Malley 1.5%, Undecided 12.25%, Refused 1.25%, Other 0.25%
Public Policy Polling Margin of error: ± 3.8% Sample size: 666	May 1–2, 2013	Hillary Clinton 55%	Joe Biden 17%	Andrew Cuomo 4%	Deval Patrick 4%, Elizabeth Warren 4%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Brian Schweitzer 0%, Mark Warner 0%, Someone else/Not sure 14%

Michigan

Delegate count: 130 Pledged, 17 Unpledged

Winner: Bernie Sanders
Primary date: March 8, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	March 8, 2016	Bernie Sanders 49.7%	Hillary Clinton 48.3%		Others / Uncommitted 2.1%
FOX 2 Detroit/Mitchell[195] Margin of error: ± 4.5% Sample size: 482	March 7, 2016	Hillary Clinton 61%	Bernie Sanders 34%		Others / Undecided 5%
FOX 2 Detroit/Mitchell[196] Margin of error: ± 4.5% Sample size: 475	March 6, 2016	Hillary Clinton 66%	Bernie Sanders 29%		Others / Undecided 5%
Monmouth[197] Margin of error: ± 5.6% Sample size: 302	March 3–6, 2016	Hillary Clinton 55%	Bernie Sanders 42%		Others / Undecided 4%
ARG[198] Margin of error: ± 5.0% Sample size: 400	March 4–5, 2016	Hillary Clinton 60%	Bernie Sanders 36%		Others / Undecided 4%
CBS News/YouGov[198] Margin of error: ± 7.7% Sample size: 597	March 2–4, 2016	Hillary Clinton 55%	Bernie Sanders 44%		Others / Undecided 1%
Mitchell/FOX 2[199] Margin of error: ± 4.0% Sample size: 610	March 2–3, 2016	Hillary Clinton 55%	Bernie Sanders 37%		Others / Undecided 8%
NBC News/Wall St. Jrnl[200] Margin of error: ± 4.2% Sample size: 546	March 1–3, 2016	Hillary Clinton 57%	Bernie Sanders 40%		Others / Undecided 3%
MSU[201] Margin of error: ± 6.1% Sample size: 262	January 25-March 3, 2016	Hillary Clinton 52%	Bernie Sanders 47%		Others / Undecided 1%
FOX 2 Detroit/Mitchell[202] Margin of error: ± 4.7% Sample size: 427	March 1, 2016	Hillary Clinton 61%	Bernie Sanders 33%		Others / Undecided 6%
MRG[203] Margin of error: ± 4.0% Sample size: 218	February 22–27, 2016	Hillary Clinton 56%	Bernie Sanders 36%		Others / Undecided 8%
FOX 2 Detroit/Mitchell[204] Margin of error: ± 5.3% Sample size: 344	February 23, 2016	Hillary Clinton 65%	Bernie Sanders 31%		Others / Undecided 4%
ARG[205] Margin of error: ± 5% Sample size: 400	February 19–20, 2016	Hillary Clinton 53%	Bernie Sanders 40%		Others / Undecided 7%
Fox 2 Detroit/Mitchell[206] Margin of error: ± 4.69% Sample size: 430	February 15, 2016	Hillary Clinton 60%	Bernie Sanders 27%		Others / Undecided 13%
Public Policy Polling[207] Margin of error: ± 4.4 Sample size: 500	February 14–16, 2016	Hillary Clinton 50%	Bernie Sanders 40%
Fox 2 Detroit/Mitchell[208] Margin of error: ± 5.5% Sample size: 321	February 4, 2016	Hillary Clinton 57%	Bernie Sanders 28%		Others / Undecided 15%
IMP/Target Insyght [208] Margin of error: ± 5.0% Sample size: 400	February 2–4, 2016	Hillary Clinton 62%	Bernie Sanders 30%		Others / Undecided 8%
Marketing Resource Group[209] Margin of error: ± 4% Sample size: 600	September 9–14, 2015	Hillary Clinton 41%	Bernie Sanders 22%	Joe Biden 22%	Martin O'Malley 1%, Undecided 12%
Public Policy Polling[210] Margin of error: ± 4.7% Sample size: 431	June 25–28, 2015	Hillary Clinton 57%	Bernie Sanders 25%	Lincoln Chafee 5%	Jim Webb 2%, Martin O'Malley 1%, Not sure 10%
Suffolk Margin of error: ± ? Sample size: 212	September 6–10, 2014	Hillary Clinton 61%	Joe Biden 17%	Elizabeth Warren 7%	Andrew Cuomo 4%, Martin O'Malley 1%, Undecided 9%, Refused 1%

Minnesota

Delegate count: 77 Pledged, 16 Unpledged

Winner: Bernie Sanders
Caucus date: March 1, 2016

Poll source	Date	1st	2nd	3rd	Other
Caucus results	March 1, 2016	Bernie Sanders 61.6%	Hillary Clinton 38.4%
Star Tribune/Mason-Dixon[211] Margin of error: ± 5.7% Sample size: 800	January 18–20, 2016	Hillary Clinton 59%	Bernie Sanders 25%	Martin O'Malley 1%	Undecided 15%
Public Policy Polling[212] Margin of error: ± 4.9% Sample size: 426	July 30 – August 2, 2015	Hillary Clinton 50%	Bernie Sanders 32%	Martin O'Malley 4%	Lincoln Chafee 3%, Jim Webb 2%, Not sure 10%
Suffolk University[213] Margin of error: ± ? Sample size: 100	April 24–28, 2014	Hillary Clinton 63%	Elizabeth Warren 15%	Joe Biden 4%	Cory Booker 3%, Deval Patrick 2%, Mark Warner 2%, Andrew Cuomo 1%, Undecided 10%
Public Policy Polling[214] Margin of error: ± 5.1% Sample size: 373	January 18–20, 2013	Hillary Clinton 59%	Joe Biden 14%	Amy Klobuchar 11%	Elizabeth Warren 4%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 1%, Mark Warner 0%, Someone Else/Undecided 10%
	January 18–20, 2013	Amy Klobuchar 43%	Andrew Cuomo 14%	Elizabeth Warren 10%	Martin O'Malley 1%, Deval Patrick 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 30%

Mississippi

Delegate count: 36 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: March 8, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	March 8, 2016	Hillary Clinton 82.5%	Bernie Sanders 16.6%	Others / Uncommitted 0.9%
Magellan Strategies[215] Margin of error: ±4.5% Sample size: 471	February 29, 2016	Hillary Clinton 65%	Bernie Sanders 11%	Others / Undecided 24%
Public Policy Polling[216] Margin of error: ± 4.3 Sample size: 514	February 14–16, 2016	Hillary Clinton 60%	Bernie Sanders 26%

Missouri

Delegate count: 71 Pledged, 13 Unpledged

Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	March 15, 2016	Hillary Clinton 49.6%	Bernie Sanders 49.4%		Others / Uncommitted 1.0%
Public Policy Polling[217] Margin of error: ± 3.4% Sample size: 839	March 11–12, 2016	Bernie Sanders 47%	Hillary Clinton 46%		Others / Undecided 7%
RABA Research[218] Margin of error: ± 4% Sample size: 670	March 8–10, 2016	Hillary Clinton 44%	Bernie Sanders 40%		Others / Undecided 16%
Fort Hayes State University[219] Margin of error: ± 8% Sample size: 145	March 3–10, 2016	Hillary Clinton 47%	Bernie Sanders 40%		Others / Undecided 13%
Public Policy Polling[220] Margin of error: 5.2% Sample size: 352	August 7–9, 2015	Hillary Clinton 53%	Bernie Sanders 25%	Martin O'Malley 5%	Jim Webb 5%, Lincoln Chafee 1%, Not sure 12%

Montana

Delegate count: 21 Pledged, 6 Unpledged

Winner: Bernie Sanders
Primary date: June 7, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary Results	June 7, 2016	Bernie Sanders 51.6%	Hillary Clinton 44.2%		No Preference 4.3%
Gravis Marketing[221] Margin of error: 3% Sample size: 1,035	February 24–25, 2015	Hillary Clinton 42.2%	Elizabeth Warren 34.3%	Joe Biden 5.9%	Jim Webb 2.9%, Mark Warner 2%, Martin O'Malley 1%, Unsure 11.8%
Public Policy Polling Margin of error: ± 5% Sample size: 381	November 15–17, 2013	Hillary Clinton 47%	Brian Schweitzer 26%	Elizabeth Warren 8%	Joe Biden 6%, Andrew Cuomo 3%, Cory Booker 1%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 7%
Public Policy Polling Margin of error: ± 5.6% Sample size: 316	June 21–23, 2013	Hillary Clinton 52%	Brian Schweitzer 17%	Joe Biden 9%	Cory Booker 3%, Elizabeth Warren 3%, Andrew Cuomo 1%, Kirsten Gillibrand 1%, Martin O'Malley 0%, Mark Warner 0%, Someone Else/Undecided 13%
Public Policy Polling Margin of error: ± 5.1% Sample size: 371	February 15–17, 2013	Hillary Clinton 58%	Brian Schweitzer 22%	Joe Biden 9%	Elizabeth Warren 5%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 5%
		Brian Schweitzer 35%	Joe Biden 28%	Elizabeth Warren 13%	Mark Warner 5%, Andrew Cuomo 4%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Deval Patrick 0%, Someone Else/Undecided 13%
		Brian Schweitzer 46%	Elizabeth Warren 18%	Andrew Cuomo 12%	Mark Warner 3%, Martin O'Malley 2%, Kirsten Gillibrand 1%, Deval Patrick 1%, Someone Else/Undecided 18%

Nebraska

Delegate count: 25 Pledged, 5 Unpledged

Winner: Bernie Sanders
Primary date: March 5, 2016

Poll source	Date	1st	2nd	3rd
Caucus results	March 5, 2016	Bernie Sanders 57.1%	Hillary Clinton 42.9%

No polls were conducted for the Nebraska Democratic caucuses

Nevada

Delegate count: 35 Pledged, 8 Unpledged

Winner: Hillary Clinton
Caucus date: February 20, 2016

Poll source	Date	1st	2nd	Other
Caucus results	February 20, 2016	Hillary Clinton 52.6%	Bernie Sanders 47.3%	Other 0.1%
Gravis Marketing[222] Margin of error: ± 4.0 Sample size: 516	February 14–15, 2016	Hillary Clinton 53%	Bernie Sanders 47%
CNN/ORC[223] Margin of error: ± 6.0 Sample size: 282	February 10–15, 2016	Hillary Clinton 48%	Bernie Sanders 47%	Others / Undecided 6%
Washington Free Beacon/TPC Research[224] Margin of error: ± 2.9 Sample size: 1,236	February 8–10, 2016	Hillary Clinton 45%	Bernie Sanders 45%	Undecided 9%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Gravis Marketing Margin of error: ± 5% Sample size: 326	December 23–27, 2015	Hillary Clinton 50%	Bernie Sanders 27%	Martin O'Malley 1%	Unsure 16%
CNN/ORC[225] Margin of error: ± 6% Sample size: 253	October 3–10, 2015	Hillary Clinton 50%	Bernie Sanders 34%	Joe Biden 12%
Gravis Marketing Margin of error: ± 5% Sample size: 416	July 12–13, 2015	Hillary Clinton 55%	Bernie Sanders 18%	Elizabeth Warren 8%	Joe Biden 5%, Lincoln Chafee 1%, Jim Webb 1%, Martin O'Malley 0%, Unsure 12%
Gravis Marketing[226] Margin of error: ± 6% Sample size: 324	March 27, 2015	Hillary Clinton 61%	Elizabeth Warren 15%	Bernie Sanders 7%	Joe Biden 3%, Al Gore 3%, Martin O'Malley 1%, Jim Webb 0%, Unsure 10%
Gravis Marketing Margin of error: ± 6% Sample size: 324	February 21–22, 2015	Hillary Clinton 58%	Elizabeth Warren 20%	Joe Biden 8%	Bernie Sanders 4%, Jim Webb 3%, Martin O'Malley 0%, Undecided 7%

New Hampshire

Delegate count: 24 Pledged, 8 Unpledged

Winner: Bernie Sanders
Primary date: February 9, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	February 9, 2016	Bernie Sanders 60.1%	Hillary Clinton 37.7%		Others / Uncommitted 2.2%
American Research Group[227] Margin of error: ± 5% Sample size: 408	February 6–7, 2016	Bernie Sanders 53%	Hillary Clinton 41%		Undecided 6%
University of Massachusetts-Lowell/7 News survey[228] Margin of error: ± 5.38% Sample size: 428	February 4–6, 2016	Bernie Sanders 57%	Hillary Clinton 40%		Others / Undecided 3%
University of Massachusetts-Lowell/7 News survey[229] Margin of error: ± 5.3% Sample size: 442	January 29–31, 2016	Bernie Sanders 61%	Hillary Clinton 30%	Martin O'Malley 1%	Undecided 6%
CNN/WMUR[230] Margin of error: ± 5.3% Sample size: 347	January 27–30, 2016	Bernie Sanders 57%	Hillary Clinton 34%	Martin O'Malley 1%	Other, Undecided, or Not Committed 9%
Emerson College[231] Margin of error ± 5.2% Sample Size: 350	January 25–26, 2016	Bernie Sanders 52%	Hillary Clinton 44%	Martin O'Malley 3%	Other 1%
American Research Group[232] Margin of error ± 4% Sample Size: 396	January 23–25, 2016	Bernie Sanders 49%	Hillary Clinton 42%	Martin O'Malley 3%	Other 6%
Franklin Pierce University/Boston Herald[233] Margin of error ± 4.9% Sample Size: 408	January 20–24, 2016	Bernie Sanders 55%	Hillary Clinton 39%	Martin O'Malley 2%	Other 5%
Fox News[234] Margin of error ± 4.5% Sample Size: 400	January 18–21, 2016	Bernie Sanders 56%	Hillary Clinton 34%	Martin O'Malley 3%	Other 7%
CBS News/YouGov[235] Margin of error ± 6.2% Sample Size:	January 18–21, 2016	Bernie Sanders 57%	Hillary Clinton 38%	Martin O'Malley 5%	No preference 0%
Suffolk University[236] Margin of error – Sample Size: 500	January 17–21, 2016	Bernie Sanders 50%	Hillary Clinton 41%	Martin O'Malley 2%	Other/Undecided 7%
American Research Group[237] Margin of error ± 4% Sample Size: 600	January 15–18, 2016	Bernie Sanders 49%	Hillary Clinton 43%	Martin O'Malley 3%	Undecided 5%
Gravis Marketing[238] Margin of error ± 4.5% Sample Size: 472	January 15–18, 2016	Bernie Sanders 46%	Hillary Clinton 43%	Martin O'Malley 2%	Undecided 8%
CNN and WMUR[239] Margin of error ± 4.8% Sample Size: 420	January 13–18, 2016	Bernie Sanders 60%	Hillary Clinton 33%	Martin O'Malley 1%	Undecided 6%
Monmouth University Poll[240] Margin of error ± 4.8% Sample Size: 413	January 7–10, 2016	Bernie Sanders 53%	Hillary Clinton 39%	Martin O'Malley 5%	Undecided 3%
Fox News[241] Margin of error ± 5% Sample Size: 386	January 4–7, 2016	Bernie Sanders 50%	Hillary Clinton 37%	Martin O'Malley 3%	Other 2%, None of the above 5%, Don't know 3%
NBC News/WSJ/Marist Margin of error: ± 4.8% Sample size: 425	January 2–7, 2016	Bernie Sanders 50%	Hillary Clinton 46%	Martin O'Malley 1%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
American Research Group[237] Margin of error ± 4% Sample Size: 600	December 20–22, 2015	Hillary Clinton 46%	Bernie Sanders 43%	Martin O'Malley 3%	Other <0.5%, Undecided 7%
YouGov/CBS News[242] Margin of error ± 5.7% Sample Size: 1091	December 14–17, 2015	Bernie Sanders 56%	Hillary Clinton 42%	Martin O'Malley 1%	No preference 1%
Boston Herald[243] Margin of error ± 4.8% Sample Size: 410	December 13–17, 2015	Bernie Sanders 48%	Hillary Clinton 46%	Martin O'Malley 2%	Undecided 4%
CNN and WMUR[244] Margin of error: ± 5.1% Sample size: 370	November 30 – December 7, 2015	Bernie Sanders 50%	Hillary Clinton 40%	Martin O'Malley 1%	Someone Else/Not Sure 6%
Public Policy Polling[245] Margin of error: ± 4.6% Sample size: 458	November 30 – December 2, 2015	Hillary Clinton 44%	Bernie Sanders 42%	Martin O'Malley 8%	Someone Else/Not Sure 7%
YouGov/CBS News[139] Margin of error: ± 5.2% Sample size: 561	November 15–19, 2015	Bernie Sanders 52%	Hillary Clinton 45%	Martin O'Malley 3%	Undecided 0%
Fox News[246] Margin of error: ± 3.5% Sample size: 804	November 15–17, 2015	Bernie Sanders 45%	Hillary Clinton 44%	Martin O'Malley 5%	None 1%, Don't Know 5%
Gravis Marketing[247] Margin of error: ± 6.7% Sample size: 214	November 11, 2015	Hillary Clinton 46%	Bernie Sanders 25%	Martin O'Malley 3%	Unsure 26%
Monmouth University Polling Institute[248] Margin of error: ± 4.9% Sample size: 403	October 29 – November 1, 2015	Hillary Clinton 48%	Bernie Sanders 45%	Martin O'Malley 3%	Lawrence Lessig 1%
YouGov/CBS News[249] Margin of error: ± 7.1% Sample size: 499	October 15–22, 2015	Bernie Sanders 54%	Hillary Clinton 39%	Martin O'Malley 3%	Lincoln Chafee 0%, Lawrence Lessig 0%, No preference 3%
Public Policy Polling Margin of error: ± 4.9% Sample size: 393	October 16–18, 2015	Hillary Clinton 41%	Bernie Sanders 33%	Joe Biden 11%	Martin O'Malley 4%, Lincoln Chafee 2%, Jim Webb 2%, Lawrence Lessig 0%, Not Sure 7%
Bloomberg/San Anselm Poll[250] Margin of error: ± 4.9% Sample size: 400	October 15–18, 2015	Bernie Sanders 41%	Hillary Clinton 36%	Joe Biden 10%	Jim Webb 1%, Lawrence Lessig 1%, Someone Else 1%, None of the Above 2%, Not Sure 8%
Franklin Pierce-Herald[251] Margin of error: ± 4.9% Sample size: 403	October 14–17, 2015	Bernie Sanders 38%	Hillary Clinton 30%	Joe Biden 19%	Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 1%
Boston Globe/Suffolk University[252] Margin of error: ± 4.4% Sample size: 500	October 14–15, 2015	Hillary Clinton 36.8%	Bernie Sanders 35.4%	Joe Biden 11.2%	Jim Webb 2.6%, Martin O'Malley 1.4%, Lincoln Chafee 0.6%, Lawrence Lessig 0.2%, Undecided 11.6%
Gravis Marketing[253] Margin of error: ± 5.1% Sample size: 373	October 5–6, 2015	Bernie Sanders 32.8%	Hillary Clinton 30.2%	Joe Biden 10.6%	Martin O'Malley 1.5%, Jim Webb 0.7%, Lincoln Chafee 0.8%, Undecided 23.3%
NBC News/WSJ/Marist[254] Margin of error: ± 4.9% Sample size: 404	September 23–30, 2015	Bernie Sanders 42%	Hillary Clinton 28%	Joe Biden 18%	Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 1%, Undecided 9%
	September 23–30, 2015	Bernie Sanders 48%	Hillary Clinton 39%	Lincoln Chafee 2%	Martin O'Malley 2%, Jim Webb 1%, Undecided 9%
UNH/WMUR[255] Margin of error: ± 5.5% Sample size: 314	September 17–23, 2015	Bernie Sanders 46%	Hillary Clinton 30%	Joe Biden 14%	Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 1%, Don't Know Yet 6%
MassINC/WBUR/NPR[256] Margin of error: ± 4.9% Sample size: 404	September 12–15, 2015	Bernie Sanders 35%	Hillary Clinton 31%	Joe Biden 14%	Jim Webb 2%, Martin O'Malley 1%, Lincoln Chafee 1%, Did not know/refused 10%, Some other candidate 4%, Would not vote 2%
Monmouth University[257] Margin of error: ± 4.9% Sample size: 400	September 10–13, 2015	Bernie Sanders 43%	Hillary Clinton 36%	Joe Biden 13%	Martin O'Malley 2%, Lincoln Chafee 1%, Jim Webb 1%, Lawrence Lessig 1%, other 1%, undecided 3%
YouGov/CBS News[258] Margin of error: ± 7.4% Sample size: 548	September 3–10, 2015	Bernie Sanders 52%	Hillary Clinton 30%	Joe Biden 9%	Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, No preference 8%
NBC News/Marist Poll[259] Margin of error: ± 5.2% Sample size: 356	Published September 6, 2015	Bernie Sanders 41%	Hillary Clinton 32%	Joe Biden 16%	Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee <1%, Undecided 8%
	Published September 6, 2015	Bernie Sanders 49%	Hillary Clinton 38%	Jim Webb 2%	Lincoln Chafee 1%, Martin O'Malley 1%, Undecided 8%
Public Policy Polling[260] Margin of error: ± 5.1% Sample size: 370	August 21–24, 2015	Bernie Sanders 42%	Hillary Clinton 35%	Jim Webb 6%	Martin O'Malley 4%, Lincoln Chafee 2%, Lawrence Lessig 1%, Not sure 10%
Franklin Pierce University/Boston Herald[261] Margin of error: ± 4.7% Sample size: 442	August 7–10, 2015	Bernie Sanders 44%	Hillary Clinton 37%	Joe Biden 9%	Jim Webb 1%, Martin O'Malley <1%, Lincoln Chafee <1%, Other/Not sure 9%
Gravis Marketing/One America News[262] Margin of error: ± 4.5% Sample size: 475	July 31 – August 3, 2015	Hillary Clinton 43%	Bernie Sanders 39%	Elizabeth Warren 8%	Joe Biden 6%, Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 0%
UNH/WMUR[263] Margin of error: ± 5.9% Sample size: 276	July 22–30, 2015	Hillary Clinton 42%	Bernie Sanders 36%	Joe Biden 5%	Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 3%, Don't Know Yet 12%
NBC News/Marist[264] Margin of error: ± 5.4% Sample size: 329	July 14–21, 2015	Hillary Clinton 42%	Bernie Sanders 32%	Joe Biden 12%	Martin O'Malley 3%, Lincoln Chafee 2%, Jim Webb 1%, Undecided 10%
CNN/WMUR[265] Margin of error: ± 5.2% Sample size: 360	June 18–24, 2015	Hillary Clinton 43%	Bernie Sanders 35%	Joe Biden 8%	Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 2%, Not sure 9%
Bloomberg/Saint Anselm Margin of error: ± 4.9% Sample size: 400	June 19–22, 2015	Hillary Clinton 56%	Bernie Sanders 24%	Martin O'Malley 2%	Lincoln Chafee 1%, None of the above 4%, Not sure 12%
Suffolk Margin of error: ± 4.4% Sample size: 500	June 11–15, 2015	Hillary Clinton 41%	Bernie Sanders 31%	Joe Biden 7%	Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Other 0%, Undecided 15%
Morning Consult Margin of error: ± 6% Sample size: 279	May 31 – June 8, 2015	Hillary Clinton 44%	Bernie Sanders 32%	Joe Biden 8%	Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 0%, Don't know/no opinion 11%
Purple Strategies Margin of error: ± 4.9% Sample size: 400	May 2–6, 2015	Hillary Clinton 62%	Bernie Sanders 18%	Joe Biden 5%	Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Someone else 0%, None of the above 3%, Not sure 8%
UNH/WMUR Margin of error: ± 6.5% Sample size: 229	April 24 – May 3, 2015	Hillary Clinton 51%	Elizabeth Warren 20%	Bernie Sanders 13%	Andrew Cuomo 3%, Joe Biden 2%, Lincoln Chafee 1%, Martin O'Malley 1%, Jim Webb 1%, Undecided 8%
Gravis Marketing Margin of error: ± 5% Sample size: 369	April 21–22, 2015	Hillary Clinton 45%	Elizabeth Warren 24%	Bernie Sanders 12%	Joe Biden 7%, Martin O'Malley 4%, Lincoln Chafee 2%, Jim Webb 2%, Bill de Blasio 0.4%, Undecided 5%
Gravis Marketing Margin of error: ± 5% Sample size: 369	April 21–22, 2015	Hillary Clinton 54%	Bernie Sanders 19%	Joe Biden 10%	Martin O'Malley 5%, Jim Webb 4%, Lincoln Chafee 2%, Bill de Blasio 1%, Undecided 6%
Public Policy Polling Margin of error: ± 5.4% Sample size: 329	April 9–13, 2015	Hillary Clinton 45%	Elizabeth Warren 23%	Bernie Sanders 12%	Joe Biden 7%, Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Other/Undecided 9%
Franklin Pierce University/Boston Herald Margin of error: ± 4.7% Sample size: 417	March 22–25, 2015	Hillary Clinton 47%	Elizabeth Warren 22%	Joe Biden 10%	Bernie Sanders 8%, Andrew Cuomo 4%, Martin O'Malley 1%, Jim Webb <1%, Other 3%, Unsure 5%
	March 22–25, 2015	Hillary Clinton 41%	Elizabeth Warren 20%	Al Gore 16%	Joe Biden 7%, Bernie Sanders 6%, Andrew Cuomo 1%, Martin O'Malley <1%, Jim Webb <1%, Other 2%, Unsure 6%
Gravis Marketing Margin of error: ± 5% Sample size: 427	March 18–19, 2015	Hillary Clinton 49%	Elizabeth Warren 20%	Bernie Sanders 12%	Joe Biden 5%, Martin O'Malley 2%, Jim Webb 2%, Unsure 10%
NBC News/Marist Margin of error: ± 5.6% Sample size: 309	February 3–10, 2015	Hillary Clinton 69%	Bernie Sanders 13%	Joe Biden 8%	Jim Webb 2%, Martin O'Malley <1%, Undecided 7%
Purple Strategies Margin of error: ± 4.9% Sample size: 400	January 31 – February 5, 2015	Hillary Clinton 56%	Elizabeth Warren 15%	Joe Biden 8%	Bernie Sanders 8%, Martin O'Malley 0%, Jim Webb 0%, Someone else 0%, None of the above 2%, Not sure 11%
Gravis Marketing Margin of error: ± 5% Sample size: 384	February 2–3, 2015	Hillary Clinton 44%	Elizabeth Warren 25%	Bernie Sanders 13%	Joe Biden 5%, Martin O'Malley 1%, Jim Webb 1%, Unsure 10%
UNH/WMUR Margin of error: ± 5.7% Sample size: 297	January 22 – February 3, 2015	Hillary Clinton 58%	Elizabeth Warren 14%	Joe Biden 8%	Bernie Sanders 6%, Andrew Cuomo 2%, Martin O'Malley 1%, Jim Webb 1%, Someone else 1%, Don't know yet 9%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Purple Insights Margin of error: ± 4.9% Sample size: 404	November 12–18, 2014	Hillary Clinton 62%	Elizabeth Warren 13%	Bernie Sanders 6%	Joe Biden 5%, Deval Patrick 2%, Martin O'Malley 1%, Someone else 0%, None of the above 2%, Not sure 8%
New England College Margin of error: ± 4.06% Sample size: 583	October 31 – November 1, 2014	Hillary Clinton 53.1%	Elizabeth Warren 16.8%	Bernie Sanders 7%	Joe Biden 5.8%, Martin O'Malley 2.3%, Deval Patrick 1.4%, Andrew Cuomo 1.2%, Kirsten Gillibrand 1.2%, Mark Warner 1.2%, Other 10%
UMass Amherst Margin of error: ± ? Sample size: 204	October 10–15, 2014	Hillary Clinton 49%	Elizabeth Warren 16%	Bernie Sanders 11%	Joe Biden 6%, Andrew Cuomo 3%, Deval Patrick 3%, Martin O'Malley <1%, Cory Booker <1%, Other 11%
WMUR/UNH Margin of error: ± 5.9% Sample size: 275	September 29 – October 5, 2014	Hillary Clinton 58%	Elizabeth Warren 18%	Joe Biden 3%	Martin O'Malley 3%, Bernie Sanders 3%, Andrew Cuomo 1%, Mark Warner <1%, Other 1%, Undecided 13%
CNN/ORC Margin of error: ± 5.5% Sample size: 334	September 8–11, 2014	Hillary Clinton 60%	Elizabeth Warren 11%	Joe Biden 8%	Bernie Sanders 7%, Deval Patrick 4%, Andrew Cuomo 1%, Martin O'Malley 1%, Other 1%, None/No one 2%, No opinion 6%
NBC News/Marist Margin of error: ± 4.5% Sample size: 479	July 7–13, 2014	Hillary Clinton 74%	Joe Biden 18%	Undecided 8%
WMUR/UNH Margin of error: ± 6.1% Sample size: 257	June 19 – July 1, 2014	Hillary Clinton 59%	Joe Biden 14%	Elizabeth Warren 8%	Bernie Sanders 5%, Andrew Cuomo 3%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Other 1%, Undecided 9%
WMUR/UNH Margin of error: ± 7.2% Sample size: 184	April 1–9, 2014	Hillary Clinton 65%	Joe Biden 6%	Andrew Cuomo 4%	Mark Warner 2%, Martin O'Malley 0%, Brian Schweitzer 0%, Other 5%, Undecided 18%
WMUR/UNH Margin of error: ± 6.2% Sample size: 252	January 21–26, 2014	Hillary Clinton 74%	Joe Biden 10%	Andrew Cuomo 2%	Mark Warner 1%, Martin O'Malley <1%, Brian Schweitzer <1%, Kirsten Gillibrand 0%, Other 2%, Undecided 10%
Purple Strategies Margin of error: ± 5.4% Sample size: 334	January 21–23, 2014	Hillary Clinton 68%	Elizabeth Warren 13%	Joe Biden 6%	Deval Patrick 2%, Martin O'Malley 1%, Other 2%, None 1%, Undecided 5%
Public Policy Polling Margin of error: ± 4.4% Sample size: 502	January 9–12, 2014	Hillary Clinton 65%	Joe Biden 10%	Elizabeth Warren 8%	Andrew Cuomo 3%, Cory Booker 2%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone else/Not sure 9%
		Joe Biden 32%	Elizabeth Warren 21%	Andrew Cuomo 9%	Cory Booker 4%, Kirsten Gillibrand 4%, Martin O'Malley 2%, Brian Schweitzer 1%, Mark Warner 1%, Someone else/Not sure 26%
		Elizabeth Warren 30%	Andrew Cuomo 19%	Cory Booker 9%	Martin O'Malley 5%, Kirsten Gillibrand 4%, Brian Schweitzer 2%, Mark Warner 2%, Someone else/Not sure 28%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
WMUR/UNH Margin of error: ± 6.2% Sample size: 252	October 7–16, 2013	Hillary Clinton 64%	Joe Biden 6%	Elizabeth Warren 6%	Andrew Cuomo 2%, Deval Patrick 1%, Evan Bayh <1%, Cory Booker <1%, Martin O'Malley <1%, Mark Warner <1%, Kirsten Gillibrand 0%, John Hickenlooper 0%, Other 2%, Unsure 18%
Public Policy Polling Margin of error: ± 4.6% Sample size: 455	September 13–16, 2013	Hillary Clinton 57%	Joe Biden 12%	Elizabeth Warren 11%	Cory Booker 4%, Andrew Cuomo 2%, Kirsten Gillibrand 1%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Someone else/Not sure 11%
		Joe Biden 36%	Elizabeth Warren 20%	Cory Booker 9%	Andrew Cuomo 7%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Someone else/Not sure 23%
		Elizabeth Warren 33%	Andrew Cuomo 14%	Cory Booker 12%	Kirsten Gillibrand 5%, Martin O'Malley 4%, Mark Warner 2%, Brian Schweitzer 1%, Someone else/Not sure 30%
WMUR/UNH Margin of error: ± 7.1% Sample size: 190	July 18–29, 2013	Hillary Clinton 62%	Joe Biden 8%	Deval Patrick 5%	Cory Booker 2%, Andrew Cuomo 1%, Evan Bayh <1%, Kirsten Gillibrand <1%, John Hickenlooper <1%, Martin O'Malley 0%, Mark Warner 0%, Other 2%, Unsure 19%
New England College Margin of error: ± 5.37% Sample size: 333	July, 2013	Hillary Clinton 65%	Joe Biden 8%	Jeanne Shaheen 6%	Andrew Cuomo 1.5%, Martin O'Malley 0.6%, Unsure 19%
New England College Margin of error: ± 5.5% Sample size: 314	May, 2013	Hillary Clinton 65%	Joe Biden 10%	Elizabeth Warren 5%	Andrew Cuomo 4%, Deval Patrick 3%, Martin O'Malley 0%, Unsure 13%
Public Policy Polling Margin of error: ± 5.1% Sample size: 368	April 19–21, 2013	Hillary Clinton 68%	Joe Biden 12%	Elizabeth Warren 5%	Andrew Cuomo 3%, Deval Patrick 2%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 9%
		Joe Biden 44%	Elizabeth Warren 12%	Andrew Cuomo 9%	Deval Patrick 9%, Kirsten Gillibrand 2%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Someone Else/Undecided 21%
		Andrew Cuomo 23%	Elizabeth Warren 22%	Deval Patrick 17%	Kirsten Gillibrand 4%, Martin O'Malley 2%, Brian Schweitzer 1%, Mark Warner 1%, Someone Else/Undecided 30%
WMUR/UNH Margin of error: ± 7.1% Sample size: 188	April 4–9, 2013	Hillary Clinton 61%	Joe Biden 7%	Andrew Cuomo 3%	Deval Patrick 3%, Mark Warner 2%, Evan Bayh 1%, Cory Booker 1%, John Hickenlooper 0%, Martin O'Malley 0%, Brian Schweitzer 0%, Antonio Villaraigosa 0%, Someone Else 2%, Undecided 22%
WMUR/UNH Margin of error: ± 7% Sample size: 201	Jan. 30–Feb. 5, 2013	Hillary Clinton 63%	Joe Biden 10%	Andrew Cuomo 5%	Cory Booker 2%, Evan Bayh 1%, Deval Patrick 1%, Brian Schweitzer 1%, John Hickenlooper <1%, Martin O'Malley <1%, Antonio Villaraigosa <1%, Mark Warner <1%, Someone Else 1%, Undecided 16%

New Jersey

Delegate count: 126 Pledged, 16 Unpledged

Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	June 7, 2016	Hillary Clinton 63.3%	Bernie Sanders 36.7%
CBS/YouGov[266] Margin of error: ± 5.4% Sample size: 586	May 31 – June 3, 2016	Hillary Clinton 61%	Bernie Sanders 34%	Others / Undecided 5%
American Research Group[267] Margin of error: ± -% Sample size: 400	May 31 – June 2, 2016	Hillary Clinton 60%	Bernie Sanders 37%	Others / Undecided 3%
Quinnipiac[268] Margin of error: ± 3.7% Sample size: 696	May 10-16, 2016	Hillary Clinton 54%	Bernie Sanders 40%	Others / Undecided 6%
Monmouth University[269] Margin of error: ± 5.7% Sample size: 301	May 1-3, 2016	Hillary Clinton 60%	Bernie Sanders 32%	Others / Undecided 8%
Rutgers-Eagleton Poll[270] Margin of error: ± 6.3% Sample Size: 292	April 1-8, 2016	Hillary Clinton 51%	Bernie Sanders 42%	Others / Undecided 7%
Rutgers-Eagleton Poll[271] Margin of error: ± 6.2% Sample Size: 304	February 6–15, 2016	Hillary Clinton 55%	Bernie Sanders 32%	Others / Undecided 13%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Rutgers-Eagleton Poll[272] Margin of error: ± ?% Sample Size: 304	November 30 – December 6, 2015	Hillary Clinton 60%	Bernie Sanders 19%	Martin O'Malley 1%	Other 3%, Don't know 17%
Farleigh Dickenson University[273] Margin of error: ± 3.9% Sample Size: 830	November 9–15, 2015	Hillary Clinton 64%	Bernie Sanders 27%	Martin O'Malley 2%	DK/Refused 3%, Wouldn't Vote 3%, Other 1%
Rutgers-Eagleton Poll[274] Margin of error: ± 5.7% Sample size: 367	October 3–10, 2015	Hillary Clinton 49%	Bernie Sanders 19%	Joe Biden 10%	Other 3%, Don't know 20%
Fairleigh Dickinson University[275] Margin of error: ± 5.5% Sample size: 345	June 15–21, 2015	Hillary Clinton 63%	Bernie Sanders 15%	Martin O'Malley 3%	Lincoln Chafee 0%, Other 1%, Wouldn't vote 3%, DK/Refused 14%
Fairleigh Dickinson University Margin of error: ± 5.5% Sample size: 323	April 13–19, 2015	Hillary Clinton 62%			Another Democratic candidate 9%, Don't know 27%, Refused 1%
Quinnipiac University Margin of error: ± 4.2% Sample size: 539	April 9–14, 2015	Hillary Clinton 63%	Elizabeth Warren 12%	Joe Biden 10%	Bernie Sanders 3%, Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 3%, Don't know 7%
	April 9–14, 2015	Joe Biden 36%	Elizabeth Warren 28%	Bernie Sanders 6%	Martin O'Malley 3%, Jim Webb 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 4%, Don't know 21%
Quinnipiac University Margin of error: ± ? Sample size: ?	January 15–19, 2015	Hillary Clinton 65%	Elizabeth Warren 11%	Joe Biden 7%	Bernie Sanders 3%, Jim Webb 1%, Martin O'Malley 0%, Other 1%, Wouldn't vote 3%, Don't know 11%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Rutgers-Eagleton Margin of error: ± ? Sample size: 280	December 3–10, 2014	Hillary Clinton 54%	Elizabeth Warren 6%	Cory Booker 2%	Joe Biden 1%, Martin O'Malley 1%, Other 3%, Don't know 34%
Rutgers-Eagleton Margin of error: ± ? Sample size: 331	July 28 – August 5, 2014	Hillary Clinton 59%	Joe Biden 3%	Elizabeth Warren 3%	Cory Booker 2%, Other 4%, Don't know 30%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
Fairleigh Dickinson University Margin of error: ± 5.3% Sample size: 337	August 21–27, 2013	Hillary Clinton 63%	Joe Biden 10%	Andrew Cuomo 6%	Elizabeth Warren 4%, Other 4%, Undecided 13%
Kean University Margin of error: ± ?% Sample size: 420	April 25–29, 2013	Hillary Clinton 67%	Joe Biden 13%	Andrew Cuomo 8%	Martin O'Malley 2%, Other 4%, Undecided 6%

New Mexico

Delegate count: 34 Pledged, 9 Unpledged

Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source	Date	1st	2nd	Other
Official Primary Results	June 7, 2016	Hillary Clinton 51.5%	Bernie Sanders 48.5%
BWD Global[276] Margin of error: ± 2.5% Sample size: 1,455	May 25-26, 2016	Hillary Clinton 53%	Bernie Sanders 28%	Others / Undecided 19%
Albuquerque Journal[277] Margin of error: ± 4.9% Sample size: 401	February 23–25, 2016	Hillary Clinton 47%	Bernie Sanders 33%	Others / Undecided 20%

New York

Delegate count: 247 Pledged, 44 Unpledged

Winner: Hillary Clinton
Primary date: April 19, 2016

Poll source	Date	1st	2nd	Other
Primary results	April 19, 2016	Hillary Clinton 57.5%	Bernie Sanders 41.6%	Void / Blank Votes 0.9%
Emerson College[278] Margin of error: ± 4.6% Sample size: 438	April 15-17, 2016	Hillary Clinton 55%	Bernie Sanders 40%	Others / Undecided 5%
CBS News/YouGov[279] Margin of error: ± 4.4% Sample size: 1,033	April 13-15, 2016	Hillary Clinton 53%	Bernie Sanders 43%	Others / Undecided 4%
NBC/WSJ/Marist[280] Margin of error: ± 4.0% Sample size: 591	April 10-13, 2016	Hillary Clinton 57%	Bernie Sanders 40%	Others / Undecided 3%
Quinnipiac[281] Margin of error: ± 3.3% Sample size: 860	April 6-11, 2016	Hillary Clinton 53%	Bernie Sanders 40%	Others / Undecided 7%
Gravis Marketing/ One America News[282] Margin of error: ± 2.9% Sample size: 1,134	April 5–6, 2016	Hillary Clinton 53%	Bernie Sanders 47%
Siena College[283] Margin of error: ± 4.5% Sample size: 538	April 6-11, 2016	Hillary Clinton 52%	Bernie Sanders 42%	Others / Undecided 6%
Monmouth[284] Margin of error: ± 5.6% Sample size: 302	April 8-10, 2016	Hillary Clinton 51%	Bernie Sanders 39%	Others / Undecided 10%
PPP[285] Margin of error: ± 3.8% Sample size: 663	April 7-10, 2016	Hillary Clinton 51%	Bernie Sanders 40%	Others / Undecided 9%
NBC News/WSJ/Marist[286] Margin of error: ± 4.2% Sample size: 557	April 6-10, 2016	Hillary Clinton 55%	Bernie Sanders 41%	Others / Undecided 4%
NY1/Baruch[287] Margin of error: ± 4.2% Sample size: 632	April 5-10, 2016	Hillary Clinton 50%	Bernie Sanders 37%	Others / Undecided 13%
Emerson College[288] Margin of error: ± 5.4% Sample size: 324	April 6-7, 2016	Hillary Clinton 56%	Bernie Sanders 38%	Others / Undecided 6%
FOX News[289] Margin of error: ± 3.5% Sample size: 801	April 4-7, 2016	Hillary Clinton 53%	Bernie Sanders 37%	Others / Undecided 10%
CBS News/YouGov[290] Margin of error: ± 3.4% Sample size: 718	March 29- April 1, 2016	Hillary Clinton 53%	Bernie Sanders 43%	Others / Undecided 4%
Quinnipiac[291] Margin of error: ± 3.7% Sample size: 693	March 22-29, 2016	Hillary Clinton 54%	Bernie Sanders 42%	Others / Undecided 4%
Emerson College[292] Margin of error: ± 5.0% Sample size: 373	March 14-16, 2016	Hillary Clinton 71%	Bernie Sanders 23%	Others / Undecided 6%
Siena College Margin of error: ± 6.2% Sample size: 368	February 28–March 3, 2016	Hillary Clinton 55%	Bernie Sanders 34%	Others / Undecided 11%
Siena College Margin of error: ± 5.6% Sample size: 434	January 31 – February 3, 2016	Hillary Clinton 55%	Bernie Sanders 34%	Others / Undecided 11%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Siena College Margin of error: ± 5% Sample size: 374	September 14–17, 2015	Hillary Clinton 45%	Joe Biden 24%	Bernie Sanders 23%	None of them 4%, Don't know/No opinion 3%
Quinnipiac University[293] Margin of error: ± 4.4% Sample size: 508	May 28 – June 1, 2015	Hillary Clinton 55%	Bernie Sanders 15%	Joe Biden 9%	Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 1%, Someone else 2%, Wouldn't vote 2%, Undecided 13%
Siena College Margin of error: ± 6.3% Sample size: ?	April 19–23, 2015	Hillary Clinton 69%			Someone else 22%
Quinnipiac University Margin of error: ± 4.3% Sample size: 521	March 11–16, 2015	Hillary Clinton 51%	Elizabeth Warren 11%	Joe Biden 8%	Andrew Cuomo 7%, Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Other 0%, Wouldn't vote 3%, Undecided 12%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
Marist College Margin of error: ± 5.7% Sample size: 294	November 18–20, 2013	Hillary Clinton 64%	Andrew Cuomo 14%	Joe Biden 8%	Elizabeth Warren 6%, Martin O'Malley 3%, Undecided 5%

North Carolina

Delegate count: 107 Pledged, 14 Unpledged

Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source	Date	1st	2nd	3rd	Other
Primary results	March 15, 2016	Hillary Clinton 54.5%	Bernie Sanders 40.9%		Others / Uncommitted 4.6%
Public Policy Polling[294] Margin of error: ± 3.6% Sample size: 747	March 11–13, 2016	Hillary Clinton 56%	Bernie Sanders 37%		Others / Undecided 7%
High Point University/SurveyUSA[295] Margin of error: ± 3.8% Sample size: 669	March 9–10, 2016	Hillary Clinton 58%	Bernie Sanders 34%		Others / Undecided 8%
WRAL/SurveyUSA[296] Margin of error: ± 3.8% Sample size: 687	March 4–7, 2016	Hillary Clinton 57%	Bernie Sanders 34%		Others / Undecided 9%
Civitas[297] Margin of error: ± 4.4% Sample size: 500	March 3-7, 2016	Hillary Clinton 57%	Bernie Sanders 28%		Others / Undecided 15%
Elon University[298] Margin of error: ± 3.6% Sample size: 728	February 15–17, 2016	Hillary Clinton 47%	Bernie Sanders 37%		Others / Undecided 16%
SurveyUSA[299] Margin of error: ± 4.7% Sample size: 449	February 14–16, 2016	Hillary Clinton 51%	Bernie Sanders 36%		No Preference 4%, Undecided 9%
Public Policy Polling[300] Margin of error: ± 4.1 Sample size: 575	February 14–16, 2016	Hillary Clinton 52%	Bernie Sanders 35%		Others / Undecided 13%
High Point[301] Margin of error: ± 4.5% Sample size: 478	January 30 – February 4, 2016	Hillary Clinton 55%	Bernie Sanders 29%	Martin O'Malley 1%	Not Sure 15%
Public Policy Polling[302] Margin of error: ± 4.6% Sample size: 461	January 18–19, 2016	Hillary Clinton 59%	Bernie Sanders 26%	Martin O'Malley 5%	Not Sure 10%
Civitas[303] Margin of error: ± 4.4% Sample size: 500	January 13–16, 2016	Hillary Clinton 53%	Bernie Sanders 28%	Martin O'Malley 2%	Undecided 17%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Public Policy Polling[304] Margin of error: ± 2.8% Sample size: 555	December 5–7, 2015	Hillary Clinton 60%	Bernie Sanders 21%	Martin O'Malley 10%	Not Sure 9%
Elon University[305] Margin of error: ± 4.32% Sample size: 514	October 29 – November 2, 2015	Hillary Clinton 57%	Bernie Sanders 24%	Martin O'Malley 3%	Other 2% Undecided/DK 13% Refused 0.5%
Public Policy Polling[306] Margin of error: ± 4.8% Sample size: 421	October 23–25, 2015	Hillary Clinton 61%	Bernie Sanders 24%	Martin O'Malley 5%	Lawrence Lessig 2%
Public Policy Polling[307] Margin of error: ± 4.0% Sample size: 605	September 24–27, 2015	Hillary Clinton 37%	Joe Biden 30%	Bernie Sanders 17%	Jim Webb 3%, Lincoln Chafee 2%, Martin O'Malley 1%, Lawrence Lessig 0%, Not sure 10%
Elon University[308] Margin of error: ± 5% Sample size: 427	September 17–21, 2015	Hillary Clinton 53.40%	Bernie Sanders 23.00%	Jim Webb 1.60%	Lincoln Chafee 0.70%, Lawrence Lessig 0.70%, Martin O'Malley 0.20%, Other 2.10%, Undecided/Don't know 17.10%, Refuse 1.20%
Public Policy Polling[309] Margin of error: ± 4.5% Sample size: 477	August 12–16, 2015	Hillary Clinton 55%	Bernie Sanders 19%	Jim Webb 5%	Lincoln Chafee 2%, Martin O'Malley 2%, Lawrence Lessig 1%
Public Policy Polling[310] Margin of error: ± 5.8% Sample size: 286	July 2–6, 2015	Hillary Clinton 55%	Bernie Sanders 20%	Jim Webb 7%	Lincoln Chafee 4%, Martin O'Malley 4%, Someone else/Undecided 11%
Public Policy Polling Margin of error: ± 5.9% Sample size: 274	May 28–31, 2015	Hillary Clinton 62%	Bernie Sanders 14%	Jim Webb 5%	Lincoln Chafee 4%, Martin O'Malley 4%, Someone else/Undecided 12%
Survey USA Margin of error: ± 4.7% Sample size: 442	April 22–27, 2015	Hillary Clinton 56%	Elizabeth Warren 11%	Joe Biden 8%	Martin O'Malley 3%, Bernie Sanders 3%, Jim Webb 3%, Other/Undecided 16%
Public Policy Polling Margin of error: ± 5.1% Sample size: 370	April 2–5, 2015	Hillary Clinton 53%	Joe Biden 13%	Elizabeth Warren 11%	Martin O'Malley 5%, Jim Webb 3%, Bernie Sanders 2%, Someone else/Undecided 12%
Civitas Institute Margin of error: ± 5% Sample size: 400	March 20–23, 2015	Hillary Clinton 53%	Elizabeth Warren 19%	Joe Biden 9%	Bernie Sanders 5%, Martin O'Malley 2%, Other/Undecided 13%
Public Policy Polling Margin of error: ± 4.9% Sample size: 401	February 24–26, 2015	Hillary Clinton 56%	Elizabeth Warren 13%	Joe Biden 11%	Martin O'Malley 3%, Jim Webb 3%, Bernie Sanders 1%, Someone else/Undecided 12%
Public Policy Polling Margin of error: ± 5% Sample size: 385	January 29–31, 2015	Hillary Clinton 54%	Joe Biden 18%	Elizabeth Warren 12%	Bernie Sanders 3%, Martin O'Malley 2%, Jim Webb 2%, Someone else/Not sure 10%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Public Policy Polling Margin of error: ± 5% Sample size: 381	December 4–7, 2014	Hillary Clinton 52%	Joe Biden 18%	Elizabeth Warren 7%	Bernie Sanders 5%, Andrew Cuomo 4%, Jim Webb 2%, Martin O'Malley 1%, Brian Schweitzer 0%, Someone else/Not sure 10%
Suffolk Margin of error: ± ?% Sample size: 254	August 16–19, 2014	Hillary Clinton 57.09%	Joe Biden 14.96%	Elizabeth Warren 9.06%	Martin O'Malley 2.76%, Andrew Cuomo 1.97%, Undecided 11.42%, Refused 2.76%
Civitas Institute Margin of error: ± ?% Sample size: 336	July 28–29, 2014	Hillary Clinton 40%	Elizabeth Warren 12%	Joe Biden 9%	Andrew Cuomo 3%, Bernie Sanders 2%, Howard Dean 1%, Jim Webb 1%, Amy Klobuchar 0%, Martin O'Malley 0%, Won't vote in Democratic primary 15%, Undecided 14%, Refused 3%, Other 0%

North Dakota

Delegate count: 18 Pledged, 5 Unpledged

Winner: Bernie Sanders
Primary date: June 7, 2016

Poll source	Date	1st	2nd	Other
Caucus results	June 7, 2016	Bernie Sanders 64.2%	Hillary Clinton 25.6%	Others 10.2%

Ohio

Delegate count: 143 Pledged, 16 Unpledged

Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 15, 2016	Hillary Clinton 56.1%	Bernie Sanders 43.1%	Other 0.8%
ARG[311] Margin of error: ± 5.0% Sample size: 400	March 12–13, 2016	Hillary Clinton 52%	Bernie Sanders 45%	Others / Undecided 3%
Monmouth[312] Margin of error: ± 5.6% Sample size: 302	March 11–13, 2016	Hillary Clinton 54%	Bernie Sanders 40%	Others / Undecided 6%
Quinnipiac[313] Margin of error: ± 4.2% Sample size: 543	March 8–13, 2016	Hillary Clinton 51%	Bernie Sanders 46%	Others / Undecided 4%
Public Policy Polling[314] Margin of error: ± 4.4% Sample size: 502	March 11–12, 2016	Hillary Clinton 46%	Bernie Sanders 41%	Others / Undecided 13%
CBS News/YouGov[315] Margin of error: ± 5.3% Sample size: 777	March 9–11, 2016	Hillary Clinton 52%	Bernie Sanders 43%	Others / Undecided 5%
NBC News/Wall Street Journal/Marist[316] Margin of error: ± 4.6% Sample size: 453	March 4–10, 2016	Hillary Clinton 58%	Bernie Sanders 38%	Others / Undecided 4%
Quinnipiac[53] Margin of error: ± 4.3% Sample size: 521	March 2–7, 2016	Hillary Clinton 52%	Bernie Sanders 43%	Others / Undecided 5%
Public Polling Policy Margin of error: ± 4.4% Sample size: 508	March 4–6, 2016	Hillary Clinton 56%	Bernie Sanders 35%	Others / Undecided 9%
CNN/ORC[317] Margin of error: ± 5.5% Sample size: 294	March 2–6, 2016	Hillary Clinton 63%	Bernie Sanders 33%	Others / Undecided 4%
Quinnipiac University Margin of error: ± 4.3% Sample size: 518	February 16–20, 2016	Hillary Clinton 55%	Bernie Sanders 40%	Others / Undecided 5%
BW Community Research Institute Margin of error: ± 5% Sample size: 385	February 11–20, 2016	Bernie Sanders 45%	Hillary Clinton 44%	Others / Undecided 11%
Public Policy Polling Margin of error: ± ?% Sample size: 1,138	January 12–14, 2016	Hillary Clinton 53%	Bernie Sanders 37%	Not sure 10%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Quinnipiac University[318] Margin of error: ± 4.9% Sample size: 396	September 25 – October 5, 2015	Hillary Clinton 40%	Joe Biden 21%	Bernie Sanders 19%	Undecided 11%
Quinnipiac University[69] Margin of error: ± 5.2% Sample size: 353	August 7–18, 2015	Hillary Clinton 47%	Bernie Sanders 17%	Joe Biden 14%	Jim Webb 1%, Martin O'Malley 0%, Lincoln Chafee 0%, Other 3%, Wouldn't vote 6%, Undecided 12%
Quinnipiac University[319] Margin of error: ± 5% Sample size: 388	June 4–15, 2015	Hillary Clinton 60%	Joe Biden 13%	Bernie Sanders 10%	Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, Other 1%, Wouldn't vote 3%, Undecided 11%
Public Policy Polling Margin of error: ± 5.2% Sample size: 360	June 4–7, 2015	Hillary Clinton 61%	Bernie Sanders 13%	Michael Bloomberg 7%	Lincoln Chafee 2%, Martin O'Malley 2%, Jim Webb 1%, Not sure 13%
Quinnipiac University Margin of error: ± 5.4% Sample size: 324	March 17–28, 2015	Hillary Clinton 54%	Elizabeth Warren 14%	Joe Biden 9%	Martin O'Malley 3%, Bernie Sanders 3%, Jim Webb 2%, Other 1%, Wouldn't vote 3%, Undecided 12%
	March 17–28, 2015	Joe Biden 34%	Elizabeth Warren 25%	Martin O'Malley 5%	Bernie Sanders 5%, Jim Webb 2%, Other 1%, Wouldn't vote 3%, Undecided 24%
Quinnipiac University Margin of error: ± 5.5% Sample size: 315	January 22 – February 1, 2015	Hillary Clinton 51%	Elizabeth Warren 14%	Joe Biden 7%	Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 0%, Other 2%, Wouldn't vote 4%, Undecided 15%
	January 22 – February 1, 2015	Joe Biden 28%	Elizabeth Warren 24%	Bernie Sanders 7%	Martin O'Malley 2%, Jim Webb 2%, Other 4%, Wouldn't vote 5%, Undecided 28%

Oklahoma

Delegate count: 38 Pledged, 4 Unpledged

Winner: Bernie Sanders
Primary date: March 1, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	March 1, 2016	Bernie Sanders 51.9%	Hillary Clinton 41.5%		Others 6.6%
Monmouth[320] Margin of error: ± 5.7% Sample size: 300	February 25–28, 2016	Bernie Sanders 48%	Hillary Clinton 43%		Others / Undecided 9%
Sooner Poll/News 9/News on 6[321] Margin of error: ± 4.3% Sample size: 510	February 23–25, 2016	Hillary Clinton 40%	Bernie Sanders 31%		Others / Undecided 29%
Public Policy Polling[322] Margin of error: ± 4.2% Sample size: 542	February 14–16, 2016	Hillary Clinton 46%	Bernie Sanders 44%		Undecided 9%
Sooner Poll[323] Margin of error: ± 5.0% Sample size: 360	February 6–9, 2016	Hillary Clinton 43.9%	Bernie Sanders 28%		Undecided 28.1%
Sooner Poll[324] Margin of error: ± 5.1% Sample size: 369	November 12–15, 2015	Hillary Clinton 46.6%	Bernie Sanders 12.2%	Martin O'Malley 2.2%	Undecided 39.1%
The Oklahoman/Cole Hargrave Snodgrass & Associates[325] Margin of error: ± 4.3% Sample size: 550	October 19–22, 2015	Hillary Clinton 30%	Bernie Sanders 21%	Martin O'Malley 1%	Undecided 46%

Oregon

Delegate count: 61 Pledged, 13 Unpledged

Winner: Bernie Sanders
Primary date: May 17, 2016

Poll source	Date	1st	2nd	Other
Official Primary Results	May 17, 2016	Bernie Sanders 56.2%	Hillary Clinton 42.1%	Misc. 1.7%
DHM Research[326] Margin of error: ± 5.6% Sample size: 901	May 6–9, 2016	Hillary Clinton 48%	Bernie Sanders 33%	Others / Undecided 19%
KATU-TV/SurveyUSA[327] Margin of error: ± 4.0% Sample size: 630	March 28-April 1, 2016	Hillary Clinton 37%	Bernie Sanders 36%	Others / Undecided 27%
DHM Research[328] Margin of error: ± 7% Sample size: 206	July 22–27, 2015	Hillary Clinton 44%	Bernie Sanders 39%	Others / Undecided 17%

Pennsylvania

Delegate count: 189 Pledged, 21 Unpledged

Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary results	April 26, 2016	Hillary Clinton 55.6%	Bernie Sanders 43.5%		Other 0.9%
FOX 29/Opinion Savvy[329] Margin of error: ± 3.2% Sample size: 942	April 24, 2016	Hillary Clinton 52%	Bernie Sanders 41%		Others / Undecided 7%
CPEC LLC[330] Margin of error: ± 2.3% Sample size: 665	April 22–24, 2016	Hillary Clinton 63%	Bernie Sanders 37%
Public Policy Polling[40] Margin of error: ± 3.6% Sample size: 728	April 22–24, 2016	Hillary Clinton 51%	Bernie Sanders 41%		Others / Undecided 9%
American Research Group[331] Margin of error: ± 5.0% Sample size: 400	April 21-24, 2016	Hillary Clinton 58%	Bernie Sanders 38%		Others / Undecided 4%
Harper Polling[332] Margin of error: ± 3.9% Sample size: 641	April 21-23, 2016	Hillary Clinton 61%	Bernie Sanders 33%		Others / Undecided 6%
CBS/YouGov[333] Margin of error: ± 6.7% Sample size: 831	April 20-22, 2016	Hillary Clinton 51%	Bernie Sanders 43%		Others / Undecided 6%
NBC/WSJ/Marist[334] Margin of error: ± 1.9% Sample size: 734	April 18-20, 2016	Hillary Clinton 55%	Bernie Sanders 40%		Others / Undecided 5%
Monmouth[335] Margin of error: ± 5.6% Sample size: 302	April 17-19, 2016	Hillary Clinton 52%	Bernie Sanders 39%		Others / Undecided 9%
Franklin & Marshall College[336] Margin of error: ± 5.3% Sample size: 510	April 11-18, 2016	Hillary Clinton 58%	Bernie Sanders 31%		Others / Undecided 11%
FOX News[337] Margin of error: ± 3.5% Sample size: 805	April 4-7, 2016	Hillary Clinton 49%	Bernie Sanders 38%		Others / Undecided 13%
Quinnipiac[338] Margin of error: ± 4.3% Sample size: 514	March 30-April 4, 2016	Hillary Clinton 50%	Bernie Sanders 44%		Others / Undecided 6%
Harper[339] Margin of error: ± 4.0% Sample size: 603	April 2-3, 2016	Hillary Clinton 55%	Bernie Sanders 33%		Others / Undecided 12%
Franklin & Marshall[340] Margin of error: ± 4.7% Sample size: 408	March 14-20, 2016	Hillary Clinton 53%	Bernie Sanders 28%		Others / Undecided 19%
Harper[341] Margin of error: ± 5.3% Sample size: 347	March 1-2, 2016	Hillary Clinton 57%	Bernie Sanders 27%		Others / Undecided 16%
Franklin & Marshall College[342] Margin of error: ± 3.1% Sample size: 486	February 13–21, 2016	Hillary Clinton 48%	Bernie Sanders 27%		Others / Undecided 25%
Robert Morris University[343] Margin of error: ± 4.5% Sample size: 511	February 11–16, 2016	Hillary Clinton 48%	Bernie Sanders 41%		Others / Undecided 11%
Harper[344] Margin of error: ± 3.8% Sample size: 640	January 22–23, 2016	Hillary Clinton 55%	Bernie Sanders 28%	Martin O'Malley 4%	Undecided 13%
Franklin & Marshall[345] Margin of error: ± 3.6% Sample size: 361	January 18–23, 2016	Hillary Clinton 46%	Bernie Sanders 29%	Martin O'Malley 2%	Other 7%, Undecided 16%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Franklin & Marshall[346] Margin of error: ± 3.9% Sample size: 303	October 19–25, 2015	Hillary Clinton 52%	Bernie Sanders 18%	Martin O'Malley 0%	Other 12%, Undecided 18%
Public Policy Polling Margin of error: ± 4.8% Sample size: 416	October 8–11, 2015	Hillary Clinton 40%	Bernie Sanders 22%	Joe Biden 20%	Lincoln Chafee 3%, Martin O'Malley 2%, Lawrence Lessig 1%, Jim Webb 1%, Not Sure 12%
Quinnipiac University[69] Margin of error: ± 4.6% Sample size: 462	August 7–18, 2015	Hillary Clinton 45%	Bernie Sanders 19%	Joe Biden 17%	Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 0%, Other 2%, Wouldn't vote 3%, Undecided 12%
Quinnipiac University[319] Margin of error: ± 4.9% Sample size: 402	June 4–15, 2015	Hillary Clinton 53%	Joe Biden 15%	Bernie Sanders 10%	Jim Webb 2%, Martin O'Malley 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 4%, Undecided 15%
Public Policy Polling Margin of error: ± 5% Sample size: 385	May 21–24, 2015	Hillary Clinton 63%	Bernie Sanders 14%	Martin O'Malley 6%	Lincoln Chafee 3%, Jim Webb 3%, Not sure 12%
Quinnipiac University Margin of error: ± 4.8% Sample size: 415	March 17–28, 2015	Hillary Clinton 48%	Elizabeth Warren 15%	Joe Biden 13%	Martin O'Malley 1%, Bernie Sanders 1%, Jim Webb 1%, Other 2%, Wouldn't vote 4%, Undecided 15%
	March 17–28, 2015	Joe Biden 34%	Elizabeth Warren 27%	Martin O'Malley 4%	Bernie Sanders 2%, Jim Webb 1%, Other 3%, Wouldn't vote 5%, Undecided 25%
Quinnipiac University Margin of error: ± 5% Sample size: 392	January 22 – February 1, 2015	Hillary Clinton 54%	Elizabeth Warren 12%	Joe Biden 10%	Martin O'Malley 2%, Bernie Sanders 2%, Jim Webb 1%, Other 1%, Wouldn't vote 4%, Undecided 15%
	January 22 – February 1, 2015	Joe Biden 34%	Elizabeth Warren 21%	Martin O'Malley 5%	Jim Webb 4%, Bernie Sanders 3%, Other 2%, Wouldn't vote 5%, Undecided 26%
Public Policy Polling Margin of error: ± 4.4% Sample size: 494	January 15–18, 2015	Hillary Clinton 58%	Joe Biden 13%	Elizabeth Warren 11%	Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Someone else/Undecided 11%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Public Policy Polling Margin of error: ± 5% Sample size: 382	May 30 – June 1, 2014	Hillary Clinton 65%	Joe Biden 9%	Andrew Cuomo 5%	Elizabeth Warren 5%, Cory Booker 4%, Kirsten Gillibrand 1%, Brian Schweitzer 1%, Mark Warner 1%, Martin O'Malley 0%, Someone else/Not sure 10%
Franklin & Marshall College Margin of error: ± 4.3% Sample size: 524	March 25–31, 2014	Hillary Clinton 55%	Joe Biden 5%	Elizabeth Warren 4%	Andrew Cuomo 2%, Howard Dean 0%, Other 5%, Undecided 29%
Franklin & Marshall College Margin of error: ± 4.2% Sample size: 548	February 18–23, 2014	Hillary Clinton 58%	Elizabeth Warren 7%	Joe Biden 6%	Andrew Cuomo 2%, Howard Dean 1%, Other 3%, Undecided 23%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
Public Policy Polling Margin of error: ± 4.7% Sample size: 436	November 22–25, 2013	Hillary Clinton 61%	Joe Biden 13%	Elizabeth Warren 11%	Andrew Cuomo 3%, Cory Booker 2%, Kirsten Gillibrand 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 9%

Rhode Island

Delegate count: 24 Pledged, 9 Unpledged

Winner: Bernie Sanders
Primary date: April 26, 2016

Poll source	Date	1st	2nd	Other
Certified Primary results	April 26, 2016	Bernie Sanders 54.7%	Hillary Clinton 43.1%	Others / Uncommitted 2.2%
Public Policy Polling[40] Margin of error: ± 3.8% Sample size: 668	April 22–24, 2016	Bernie Sanders 49%	Hillary Clinton 45%	Others / Undecided 6%
Brown University[347] Margin of error: ± 4.0% Sample size: 436	April 19–21, 2016	Hillary Clinton 43%	Bernie Sanders 34%	Others / Undecided 23%
Brown University[348] Margin of error: ± ?% Sample size: 394	February 22–23, 2016	Hillary Clinton 49%	Bernie Sanders 40%	Others / Undecided 11%
Brown University[348] Margin of error: ± ?% Sample size: 396	February 17–20, 2016	Bernie Sanders 48%	Hillary Clinton 41%	Others / Undecided 11%

Primary Results

South Carolina

Delegate count: 53 Pledged, 6 Unpledged

Winner: Hillary Clinton
Primary date: 27 February 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary Results	February 27, 2016	Hillary Clinton 73.4%	Bernie Sanders 26.0%		Others 0.6%
Clemson[349] Margin of error: 3.0% Sample size: 650	February 20–25, 2016	Hillary Clinton 64%	Bernie Sanders 14%		Others / Undecided 22%
Emerson College[350] Margin of error: 6.0% Sample size: 266	February 22–24, 2016	Hillary Clinton 60%	Bernie Sanders 37%		Others / Undecided 3%
NBC/WSJ/Marist[351] Margin of error: 4.8% Sample size: 425	February 15–17, 2016	Hillary Clinton 60%	Bernie Sanders 32%		Other 8%
Bloomberg Politics[352] Margin of error: 4.9% Sample size: 403	February 13–17, 2016	Hillary Clinton 53%	Bernie Sanders 31%		Not sure 16%
ARG[353] Margin of error: 5% Sample size: 400	February 14–16, 2016	Hillary Clinton 61%	Bernie Sanders 31%	Someone else 1%	No opinion 7%
Public Policy Polling[354] Margin of error: ± 4% Sample size: 525	February 14–15, 2016	Hillary Clinton 55%	Bernie Sanders 34%		Undecided 12%
CNN/ORC[355] Margin of error: 6% Sample size: 289	February 10–15, 2016	Hillary Clinton 56%	Bernie Sanders 38%	Someone else 3%	No opinion 4%
ARG[356] Margin of error: ± 5.0% Sample size: 400	February 12–13, 2016	Hillary Clinton 65%	Bernie Sanders 27%		Other 1%, Undecided 7%
YouGov/CBS News[357] Margin of error: ± 8.7% Sample size: 404	February 10–12, 2016	Hillary Clinton 59%	Bernie Sanders 40%		No Preference 1%
NBC/WSJ/Marist[358] Margin of error: ± 4.6% Sample size: 446	January 17–23, 2016	Hillary Clinton 64%	Bernie Sanders 27%	Martin O'Malley 2%	Undecided 7%
YouGov/CBS News[359] Margin of error: ± 9.4% Sample size: 388	January 17–21, 2016	Hillary Clinton 60%	Bernie Sanders 38%	Martin O'Malley 0%	Undecided 2%
SC New Democrats Margin of error: ± ?% Sample size: 583	January 12–15, 2016	Hillary Clinton 47%	Bernie Sanders 28%	Martin O'Malley 2%	Undecided 22%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
YouGov/CBS News[360] Margin of error: ± 5.0% Sample size: 420	December 13–17, 2015	Hillary Clinton 67%	Bernie Sanders 31%	Martin O'Malley 2%	No Preference 0%
Fox News Margin of error: ± 5.0% Sample size: 364	December 5–8, 2015	Hillary Clinton 65%	Bernie Sanders 21%	Martin O'Malley 3%	Other 1%, None of the Above 7%, DK 3%
YouGov/CBS News[139] Margin of error: ± 6.0% Sample size: 420	November 15–19, 2015	Hillary Clinton 72%	Bernie Sanders 25%	Martin O'Malley 2%	Undecided 1%
Public Policy Polling[361] Margin of error: ± 4.9% Sample size: 400	November 7–8, 2015	Hillary Clinton 72%	Bernie Sanders 18%	Martin O'Malley 5%	Unsure 5%
Monmouth University[362] Margin of error: ± 4.9% Sample size: 400	November 5–8, 2015	Hillary Clinton 69%	Bernie Sanders 21%	Martin O'Malley 1%	Other 1% No Preference 8%
Winthrop University[363] Margin of error: ± 3.4% Sample size: 832	October 24 – November 1, 2015	Hillary Clinton 71%	Bernie Sanders 15%	Martin O'Malley 2%	Refused 2% Undecided 9% Wouldn't Vote 1%
YouGov/CBS News[364] Margin of error: ± 8.2% Sample size: 427	October 15–22, 2015	Hillary Clinton 68%	Bernie Sanders 25%	Martin O'Malley 1%	Jim Webb 1%, Lincoln Chafee 0%, Lawrence Lessig 0%, No preference 4%
Clemson Palmetto[365] Margin of error: 4.0% Sample size: 600	October 13–23, 2015	Hillary Clinton 43%	Bernie Sanders 6%	Martin O'Malley 1%	Undecided 50%
CNN/ORC[366] Margin of error: 5.5% Sample size: 301	October 3–10, 2015	Hillary Clinton 49%	Joe Biden 24%	Bernie Sanders 18%	Martin O'Malley 3%, Someone else 1%, None/No one 1%, No opinion 4%
Gravis Marketing[367] Margin of error: ± ?% Sample size: ?	September 25–27, 2015	Hillary Clinton 50%	Joe Biden 19%	Bernie Sanders 13%	Lincoln Chafee 1%, Jim Webb <1%, Martin O'Malley <1%, Unsure 17%
YouGov/CBS News[258] Margin of error: ± 6.8% Sample size: 528	Sep. 3–10, 2015	Hillary Clinton 46%	Bernie Sanders 23%	Joe Biden 22%	No preference 8%, Jim Webb 1%, Lincoln Chafee 0%, Martin O'Malley 0%
Public Policy Polling[368] Margin of error: ± 5.6% Sample size: 302	Sep. 3–6, 2015	Hillary Clinton 54%	Joe Biden 24%	Bernie Sanders 9%	Martin O’Malley, Jim Webb 2%; Lincoln Chafee 1%
Gravis Marketing[369] Margin of error: ± 4.0% Sample size: 209	July 29–30, 2015	Hillary Clinton 78%	Bernie Sanders 8%	Elizabeth Warren 6%	Joe Biden 6%, Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 1%
Morning Consult[370] Margin of error: ? Sample size: 309	May 31 – June 8, 2015	Hillary Clinton 56%	Joe Biden 15%	Bernie Sanders 10%	Martin O'Malley 3%, Jim Webb 2%, Lincoln Chafee 1%, Someone else 2% Undecided 11%
Public Policy Polling Margin of error: ± 6.2% Sample size: 252	February 12–15, 2015	Hillary Clinton 59%	Joe Biden 18%	Elizabeth Warren 10%	Martin O'Malley 3%, Bernie Sanders 1%, Jim Webb 1%, Other/Undecided 8%
NBC News/Marist Margin of error: ± 5.2% Sample size: 352	February 3–10, 2015	Hillary Clinton 65%	Joe Biden 20%	Bernie Sanders 3%	Martin O'Malley 2%, Jim Webb 2%, Undecided 8%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Clemson University Margin of error: ±6% Sample size: 400	May 26 – June 2, 2014	Hillary Clinton 50%	Joe Biden 12%	Andrew Cuomo 2%	Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 0%, Undecided/Don't know 35%

South Dakota

Delegate count: 20 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source	Date	1st	2nd	Others / Undecided
Official Primary results	June 7, 2016	Hillary Clinton 51.0%	Bernie Sanders 49.0%
Targeted Persuasion[371] Margin of error: ±3.31% Sample size: 874	May 23-24, 2016	Hillary Clinton 50%	Bernie Sanders 47%	Undecided 3%

Tennessee

Delegate count: 67 Pledged, 9 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	3rd	Other
Primary results	March 1, 2016	Hillary Clinton 66.1%	Bernie Sanders 32.5%		Others / Uncommitted 1.5%
SurveyMonkey[187] Margin of error: ? Sample size: 533	February 22–29, 2016	Hillary Clinton 54%	Bernie Sanders 37%		Others / Undecided 9%
NBC/WSJ/Marist[372] Margin of error: ± 3.8 Sample size: 405	February 22–25, 2016	Hillary Clinton 60%	Bernie Sanders 34%		Other 6%
Public Policy Polling[373] Margin of error: ± 4.4 Sample size: 500	February 14–16, 2016	Hillary Clinton 58%	Bernie Sanders 32%
Vanderbilt/PSRA Margin of error: 6.7% Sample size: 346	November 11–23, 2015	Hillary Clinton 48%	Bernie Sanders 28%	Martin O'Malley 3%	Undecided 10%, Other 5%, Wouldn't Vote 4%
MTSU[374] Margin of error: ± 4% Sample size: 603	October 25–27, 2015	Hillary Clinton 44%	Bernie Sanders 16%		Don't know 25%

Texas

Delegate count: 222 Pledged, 30 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	3rd	Other
Primary results	March 1, 2016	Hillary Clinton 65.2%	Bernie Sanders 33.2%		Others 1.6%
Emerson[375] Margin of error: ± 5.9% Sample size: 275	February 26–28, 2016	Hillary Clinton 68%	Bernie Sanders 26%		Others / Undecided 6%
American Research Group[376] Margin of error: ± 5.0% Sample size: 400	February 26–28, 2016	Hillary Clinton 58%	Bernie Sanders 38%		Others / Undecided 4%
YouGov/CBS News[377] Margin of error: ± 6.9% Sample size: 750	February 22–26, 2016	Hillary Clinton 61%	Bernie Sanders 37%		Others / Undecided 2%
Monmouth[378] Margin of error: ± 5.6 Sample size: 304	February 22–24, 2016	Hillary Clinton 64%	Bernie Sanders 30%		Others / Undecided 6%
Emerson College[379] Margin of error: ± 5.4 Sample size: 328	February 21–23, 2016	Hillary Clinton 56%	Bernie Sanders 40%		Others / Undecided 4%
NBC News/Wall St. Jrnl[380] Margin of error: ± 4.9 Sample size: 405	February 18–23, 2016	Hillary Clinton 59%	Bernie Sanders 38%		Others / Undecided 3%
KTVT-CBS 11[381] Margin of error: ± 3.8 Sample size: 675	February 22, 2016	Hillary Clinton 61%	Bernie Sanders 29%		Others / Undecided 10%
TEGNA/SurveyUSA[382] Margin of error: ± 4.1 Sample size: 569	February 21–22, 2016	Hillary Clinton 61%	Bernie Sanders 32%		Others / Undecided 7%
Austin American-Statesman[383] Margin of error: ± 5.0 Sample size: 411	February 19–22, 2016	Hillary Clinton 66%	Bernie Sanders 26%		Others / Undecided 8%
UT/TT[384] Margin of error: ±4.57 Sample Size: ? Dem Voters	February 12–19, 2016	Hillary Clinton 57%	Bernie Sanders 40%	Rocky de la Fuente 2%	Martin O'Malley 1% Willie Wilson 1%
Public Policy Polling[385] Margin of error: ± 4.3 Sample size: 514	February 14–16, 2016	Hillary Clinton 57%	Bernie Sanders 34%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
University of Texas/Texas Tribune[386] Margin of error ± 4.57% Sample Size: 459	October 30 – November 8, 2015	Hillary Clinton 61%	Bernie Sanders 30%	Martin O'Malley 1%	Lawrence Lessig 0% No Opinion 7%
CBS-DFW[387] Margin of error: ± 3.09% Sample size: 1008	October 23–24, 2015	Hillary Clinton 59%	Bernie Sanders 10%	Martin O'Malley 3%	Undecided 28%
Texas Lyceum[388] Margin of error: ± 7.15% Sample size: 185	September 8–21, 2015	Hillary Clinton 36%	Bernie Sanders 24%	Joe Biden 15%	Jim Webb 1%, Martin O'Malley 0%, Lincoln Chafee 0% Undecided 23%
UoT/Texas Tribune[389] Margin of error: ± 4.58% Sample size: 457	June 5–14, 2015	Hillary Clinton 53%	Bernie Sanders 15%	Joe Biden 8%	Elizabeth Warren 8%, Andrew Cuomo 1%, Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 1% Undecided 12%
UoT/Texas Tribune[390] Margin of error: ± 4.89% Sample size: 401	February 6–15, 2015	Hillary Clinton 62%	Elizabeth Warren 12%	Joe Biden 6%	Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Undecided 14%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
UoT/Texas Tribune Margin of error: ± 4.73% Sample size: 429	October 10–19, 2014	Hillary Clinton 60%	Elizabeth Warren 13%	Joe Biden 10%	Andrew Cuomo 2%, Brian Schweitzer 1%, Jim Webb 1%, Martin O'Malley 0%, Undecided 13%
UoT/Texas Tribune Margin of error: ± 4.75% Sample size: 426	May 30 – June 8, 2014	Hillary Clinton 64%	Elizabeth Warren 15%	Joe Biden 8%	Andrew Cuomo 2%, Brian Schweitzer 1%, Martin O'Malley 0%, Undecided 10%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
UoT/Texas Tribune Margin of error: ± 4.82% Sample size: 414	October 18–29, 2013	Hillary Clinton 67%	Joe Biden 7%	Elizabeth Warren 5%	Andrew Cuomo 1%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Kirsten Gillibrand 0%, Don't Know 17%
UoT/Texas Tribune Margin of error: ± 5.89% Sample size: 376	May 31 – June 9, 2013	Hillary Clinton 66%	Joe Biden 11%	Andrew Cuomo 1%	Kirsten Gillibrand 1%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Don't Know 19%

Utah

Delegate count: 33 Pledged, 4 Unpledged

Winner: Bernie Sanders
Caucus date: March 22, 2016

Poll source	Date	1st	2nd	3rd	Other
Caucus results	March 24, 2016	Bernie Sanders 79.21%	Hillary Clinton 20.33%		Other 0.46%
Dan Jones & Associates[391] Margin of error: ± 7% Sample size: 250	March 8–15, 2016	Bernie Sanders 52%	Hillary Clinton 44%
Dan Jones & Associates[392] Margin of error: ± ? Sample size: 625	February 10–15, 2016	Hillary Clinton 51%	Bernie Sanders 44%
SurveyUSA[393] Margin of error: ± 7.2% Sample size: 188	January 6–13, 2016	Hillary Clinton 50%	Bernie Sanders 40%		Other/Undecided 10%
Dan Jones & Associates[394] Margin of error: ± 3.9% Sample size: 624	November 5–14, 2015	Hillary Clinton 54%	Bernie Sanders 34%	Martin O'Malley 3%	Don't Know 5%
Dan Jones & Associates[395] Margin of error: ? Sample size: ?	September 8–17, 2015	Bernie Sanders 31%	Hillary Clinton 30%	Joe Biden 20%	Other/Undecided 19%
Dan Jones & Associates[396] Margin of error: ± ? Sample size: ?	July 14–21, 2015	Hillary Clinton 50%	Bernie Sanders 30%	Joe Biden 12%	Other/Undecided 8%
Dan Jones & Associates[397] Margin of error: ± ? Sample size: ?	March 3–5, 2015	Hillary Clinton 56%	Elizabeth Warren 25%	Joe Biden 4%	Other/Undecided 15%

Vermont

Delegate count: 16 Pledged, 10 Unpledged

Winner: Bernie Sanders
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Official Primary results	March 1, 2016	Bernie Sanders 85.7%	Hillary Clinton 13.6%	Others / Uncommitted 0.8%
The Castleton Polling Institute [398] Margin of error: ± 3.27 Sample size: 895	February 3–17, 2016	Bernie Sanders 83.1%	Hillary Clinton 9.0%	Others / Undecided 7.9%
Public Policy Polling[399] Margin of error: ± 3.7 Sample size: 500	February 14–16, 2016	Bernie Sanders 86%	Hillary Clinton 10%
Castleton University[400] Margin of error: ± 4% Sample size: 617	August 24 – September 14, 2015	Bernie Sanders 65%	Hillary Clinton 14%	Others 10%, Not sure 11%
Castleton University[401] Margin of error: ± 3.8% Sample size: 653	October 10, 2014	Bernie Sanders 36%	Hillary Clinton 29%	Neither 29%, Not sure 5%, Refused 1%

Virginia

Delegate count: 95 Pledged, 14 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Primary results	March 1, 2016	Hillary Clinton 64.3%	Bernie Sanders 35.2%	Other 0.5%
SurveyMonkey[187] Margin of error: ? Sample size: 908	February 22–29, 2016	Hillary Clinton 57%	Bernie Sanders 36%	Others / Undecided 7%
YouGov/CBS News[402] Margin of error: 9.2% Sample size: 471	February 22–26, 2016	Hillary Clinton 59%	Bernie Sanders 39%	Others / Undecided 2%
Monmouth[403] Margin of error: ± 5.6% Sample size: 302	February 22–24, 2016	Hillary Clinton 60%	Bernie Sanders 33%	Others / Undecided 7%
Roanoke College[404] Margin of error: ± 4.8% Sample size: 415	February 16–24, 2016	Hillary Clinton 50%	Bernie Sanders 33%	Others / Undecided 17%
Public Policy Polling[405] Margin of error: ± 4.4 Sample size: 500	February 14–16, 2016	Hillary Clinton 56%	Bernie Sanders 34%
Christopher Newport University[406] Margin of error: ± 4.3% Sample size: 735	February 3–14, 2016	Hillary Clinton 52%	Bernie Sanders 40%	Others / Undecided 8%

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
University of Mary Washington[407] Registered voters: Margin of error: ± 3.9% Sample size: 357 Likely voters: Margin of error: ± 4.3% Sample size: 276	November 4–9, 2015	Hillary Clinton 58% (RV) 63% (LV)	Bernie Sanders 32% (RV) 27% (LV)	Martin O'Malley 4% (RV) 5% (LV)	Don't know/None/Refused/Wouldn't vote in that primary 7% (RV) 5% (LV)
Christopher Newport University[408] Margin of error: ± 5.1% Sample size: 407	September 29 –October 8, 2015	Hillary Clinton 40%	Bernie Sanders 23%	Joe Biden 23%	Jim Webb 5%, Martin O'Malley 2%, Lincoln Chafee <1%, Someone Else 1%, Undecided/Don't Know/Refused 5%
Public Policy Polling[409] Margin of error: ± 4.9% Sample size: 409	July 13–15, 2015	Hillary Clinton 64%	Bernie Sanders 14%	Jim Webb 8%	Lincoln Chafee 5%, Martin O'Malley 2%, Not sure 7%
Christopher Newport University[410] Margin of error: ± ? Sample size: ?	April 13–24, 2015	Hillary Clinton 80%	Jim Webb 6%	Joe Biden 5%	Bernie Sanders 2%, Martin O'Malley 1%, Lincoln Chafee<1%, Someone else 2%, Undecided 3%
Christopher Newport University Margin of error: ± ? Sample size: ?	January 30 – February 10, 2015	Hillary Clinton 65%	Jim Webb 10%	Joe Biden 8%	Elizabeth Warren 8%, Deval Patrick 2%, Bernie Sanders 2%, Andrew Cuomo 1%, Martin O'Malley 1%, Someone else 1%, Undecided 2%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Christopher Newport University Margin of error: ± 5% Sample size: 391	February 23–28, 2014	Hillary Clinton 66%	Joe Biden 19%	Elizabeth Warren 7%	Undecided 9%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
University of Mary Washington Margin of error: ±? Sample size: ?	September 25–29, 2013	Hillary Clinton 34%	Mark Warner 16%	Joe Biden 9%	Elizabeth Warren 3%, Andrew Cuomo 2%, Martin O'Malley 1%, None 12%, Don't know 17%
Public Policy Polling Margin of error: ±5.2% Sample size: 357	July 11–14, 2013	Hillary Clinton 51%	Joe Biden 14%	Mark Warner 11%	Elizabeth Warren 6%, Cory Booker 4%, Martin O'Malley 3%, Andrew Cuomo 2%, Brian Schweitzer 1%, Kirsten Gillibrand 0%, Someone else/Undecided 8%
Public Policy Polling Margin of error: ± 4.8% Sample size: 421	May 24–26, 2013	Hillary Clinton 56%	Joe Biden 14%	Mark Warner 11%	Andrew Cuomo 3%, Elizabeth Warren 3%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 0%, Someone else/Undecided 10%
University of Mary Washington Margin of error: ±? Sample size: ?	March 20–24, 2013	Hillary Clinton 38%	Mark Warner 18%	Joe Biden 10%	Andrew Cuomo 3%, Martin O'Malley 3%, Other 1%, None 12%, Don't know 12%

Washington

Delegate count: 101 Pledged, 17 Unpledged

Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source	Date	1st	2nd	3rd	Other
Caucus results	March 29, 2016	Bernie Sanders 72.72%	Hillary Clinton 27.10%		Other 0.18%
Gravis Marketing[411] Margin of error: ± 6% Sample size: 256	May 18–19, 2015	Hillary Clinton 35%	Elizabeth Warren 26%	Bernie Sanders 19%	Joe Biden 4%, Martin O'Malley 3%, Jim Webb 1%, Unsure 12%
	May 18–19, 2015	Hillary Clinton 45%	Bernie Sanders 36%	Lincoln Chafee 2%	Bill De Blasio 2%, Martin O'Malley 2%, Jim Webb 1%, Unsure 12%
Public Policy Polling[412] Margin of error: ± 5% Sample size: 391	May 14–17, 2015	Hillary Clinton 57%	Bernie Sanders 24%	Martin O'Malley 4%	Jim Webb 2%, Lincoln Chafee 1%, Not sure 12%

West Virginia

Delegate count: 29 Pledged, 8 Unpledged

Winner: Bernie Sanders
Primary date: May 10, 2016

Poll source	Date	1st	2nd	3rd	Other
Primary results	May 10, 2016	Bernie Sanders 51.4%	Hillary Clinton 35.8%	Paul Farrell 8.9%	Others 3.9%
MetroNews[413] Margin of error: ±4.0% Sample size: 315	April 22-May 2, 2016	Bernie Sanders 47%	Hillary Clinton 43%		Undecided 11%
Public Policy Polling[414] Margin of error: ±3.9% Sample size: 637	April 29-May 1, 2016	Bernie Sanders 45%	Hillary Clinton 37%		Undecided 18%
West Virginia Veterans/Thirty-Ninth Street Strategies[415] Margin of error: ±3.9% Sample size: 600	March 2–6, 2016	Hillary Clinton 44%	Bernie Sanders 31%	Paul Farrell 6%	Keith Judd 1% Others 7% Undecided 11%
Orion Strategies[416] Margin of error: ±5.6% Sample size: 306	February 20–21, 2016	Bernie Sanders 32%	Hillary Clinton 24%		Undecided 44%
REPASS Research Margin of error: ±4.9%[417] Sample size: 411	February 11–16, 2016	Bernie Sanders 57%	Hillary Clinton 29%
Orion Strategies[418] Margin of error: ±4.9%[419] Sample size: 306	August 27, 2015	Hillary Clinton 23%	Joe Biden 16%	Bernie Sanders 12%	Undecided 49%
Prism Surveys[420] Margin of error: ± 3.21% Sample size: 900	August 21, 2015	Hillary Clinton 36%	Bernie Sanders 32%		Undecided 32%

Wisconsin

Delegate count: 86 Pledged, 10 Unpledged

Winner: Bernie Sanders
Primary date: April 5, 2016

Poll source	Date	1st	2nd	3rd	Other
Official Primary Results	April 5, 2016	Bernie Sanders 56.6%	Hillary Clinton 43.1%		Others / Uncommitted 0.4%
ARG[421] Margin of error: ± 5.0% Sample size: 400	April 1–3, 2016	Hillary Clinton 49%	Bernie Sanders 48%		Others / Undecided 3%
Emerson[422] Margin of error: ± 4.2% Sample size: 542	March 30 – April 3, 2016	Bernie Sanders 51%	Hillary Clinton 43%		Others / Undecided 6%
CBS News/YouGov[423] Margin of error: ± 3.7% Sample size: 653	March 29 – April 1, 2016	Bernie Sanders 49%	Hillary Clinton 47%		Others / Undecided 4%
FOX Business[424] Margin of error: ± 3.0% Sample size: 860	March 28–30, 2016	Bernie Sanders 48%	Hillary Clinton 43%		Others / Undecided 10%
Loras College[425] Margin of error: ± 4.8% Sample size: 416	March 28–29, 2016	Hillary Clinton 47%	Bernie Sanders 41%		Others / Undecided 12%
Public Policy Polling[426] Margin of error: ± 3.7% Sample size: 720	March 28–29, 2016	Bernie Sanders 49%	Hillary Clinton 43%		Others / Undecided 8%
MULaw Poll[427] Margin of error: ± 6.3% Sample size: 405	March 24–28, 2016	Bernie Sanders 49%	Hillary Clinton 45%		Others / Undecided 6%
Emerson College[428] Margin of error: ± 4.6% Sample size: 439	March 20–22, 2016	Hillary Clinton 50%	Bernie Sanders 44%		Others / Undecided 6%
MULaw Poll[429] Margin of error: ± 6.9% Sample size: 343	February 18–21, 2016	Bernie Sanders 44%	Hillary Clinton 43%		Others / Undecided 13%
MULaw Poll[430] Margin of error: ± 6.5% Sample size: 312	January 21–24, 2016	Hillary Clinton 45%	Bernie Sanders 43%	Martin O'Malley 1%	Not Reported

Polls in 2015

Poll source	Date	1st	2nd	3rd	Other
Marquette Law School[431] Margin of error: ± 6.1% Sample size: 374	November 12–15, 2015	Hillary Clinton 50%	Bernie Sanders 41%	Martin O'Malley 2%	Undecided 7%
St. Norbert College[432] Margin of error: ± 6% Sample size: ?	October 14–17, 2015	Hillary Clinton 35%	Bernie Sanders 33%	Joe Biden 21%	Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, Not Sure 10%
	October 14–17, 2015	Hillary Clinton 47%	Bernie Sanders 42%	–	Martin O'Malley 1%, Lincoln Chafee 1%, Jim Webb <1%, Not Sure 7%
Marquette University[433] Margin of error: ± 5.9% Sample size: 394	September 24–28, 2015	Hillary Clinton 42%	Bernie Sanders 30%	Joe Biden 17%	Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%
Marquette University[434] Margin of error: ± 6.1% Sample size: 396	August 13–16, 2015	Hillary Clinton 44%	Bernie Sanders 32%	Joe Biden 12%	Lincoln Chafee 1%, Martin O'Malley 1%, Jim Webb 1%
Marquette University[435] Margin of error: ± 5.1% Sample size: 391	April 7–10, 2015	Hillary Clinton 58.2%	Elizabeth Warren 14.3%	Joe Biden 12%	Martin O'Malley 0.9%, Jim Webb 0.9%, Someone else 3.7%, Don't know 8.9%
Public Policy Polling Margin of error: ± 4.4% Sample size: 504	March 6–8, 2015	Hillary Clinton 60%	Joe Biden 14%	Elizabeth Warren 12%	Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Other/Undecided 7%

Polls in 2014

Poll source	Date	1st	2nd	3rd	Other
Public Policy Polling Margin of error: ± 4.1% Sample size: 579	April 17–20, 2014	Hillary Clinton 57%	Russ Feingold 19%	Joe Biden 8%	Elizabeth Warren 5%, Cory Booker 1%, Andrew Cuomo 1%, Mark Warner 1%, Kirsten Gillibrand 0%, Martin O'Malley 0%, Someone else/Not sure 8%

Polls in 2013

Poll source	Date	1st	2nd	3rd	Other
Marquette University Margin of error: ± 5% Sample size: 392	October 21–27, 2013	Hillary Clinton 64%	Elizabeth Warren 10.8%	Joe Biden 10.6%	Andrew Cuomo 1.9%, Martin O'Malley 0.8%, Someone else 2.1%, Don't know 9.2%
Public Policy Polling Margin of error: ± 4.6% Sample size: 449	September 13–16, 2013	Hillary Clinton 50%	Russ Feingold 20%	Joe Biden 11%	Elizabeth Warren 4%, Cory Booker 3%, Andrew Cuomo 2%, Kirsten Gillibrand 0%, Martin O'Malley 0%, Mark Warner 0%, Someone else/Not sure 9%
Marquette University Margin of error: ± 5.5% Sample size: 333	May 6–9, 2013	Hillary Clinton 61.5%	Joe Biden 13%	Elizabeth Warren 4.8%	Andrew Cuomo 4.2%, Deval Patrick 1.5%, Martin O'Malley 1.1%, Mark Warner 0.7%, Someone else 1.5%, Don't Know 11%
Public Policy Polling Margin of error: Sample size:	February 21–24, 2013	Hillary Clinton 50%	Russ Feingold 25%	Joe Biden 11%	Andrew Cuomo 3%, Elizabeth Warren 2%, Martin O'Malley 1%, Deval Patrick 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 8%

Wyoming

Delegate count: 14 Pledged, 4 Unpledged

Winner: Bernie Sanders
Caucus date: April 9, 2016

Poll source	Date	1st	2nd
Caucus results	March 5, 2016	Bernie Sanders 55.7%	Hillary Clinton 44.3%

No polls were conducted for the Wyoming Democratic caucuses.

District/territories

American Samoa

Delegate count: 6 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 1, 2016	Hillary Clinton 68.4%	Bernie Sanders 25.7%	Other 6.0%

District of Columbia

Delegate count: 20 Pledged, 26 Unpledged

Winner: Hillary Clinton
Primary date: June 14, 2016

Poll source	Date	1st	2nd	Other
Primary results	June 14, 2016	Hillary Clinton 78.7%	Bernie Sanders 21.1%	Other 0.2%

Guam

Delegate count: 7 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: May 7, 2016

Poll source	Date	1st	2nd	Other
Caucus results	May 7, 2016	Hillary Clinton 59.5%	Bernie Sanders 40.5%

Northern Marianas

Delegate count: 6 Pledged, 5 Unpledged

Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source	Date	1st	2nd	Other
Caucus results	March 12, 2016	Hillary Clinton 54.0%	Bernie Sanders 34.4%	Other 11.6%

Puerto Rico

Delegate count: 60 Pledged, 7 Unpledged

Winner: Hillary Clinton
Primary date: June 5, 2016

Poll source	Date	1st	2nd	Other
Primary results	June 5, 2016	Hillary Clinton 60.0%	Bernie Sanders 38.0%	Others 2.0%
Pasquines Polls[436] Margin of error: ±% Sample size: 249	May 23-30, 2016	Hillary Clinton 64%	Bernie Sanders 30%	Others / Undecided 6%

Virgin Islands

Delegate count: 7 Pledged, 5 Unpledged

Winner: Hillary Clinton
Caucus date: June 4, 2016

Poll source	Date	1st	2nd	Other
Caucus results	June 4, 2016	Hillary Clinton 84.2%	Bernie Sanders 12.2%

Notes

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This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

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Statewide opinion polling for the 2016 Democratic Party presidential primaries

Statewide polling

District/territories

See also

Notes

References