1850 and 1851 United States House of Representatives elections

State	Type	Date	Total seats	Democratic		Free Soil		States' Rights		Unionist		Whig
				Seats	Change	Seats	Change	Seats	Change	Seats	Change	Seats	Change
Iowa	District	August 5, 1850	2	2		0		0		0		0
Missouri	District	August 5, 1850	5	2	3	0		0		0		3	3
Vermont	District	September 3, 1850	4	1		0		0		0		3
Maine	District	September 9, 1850	7	5		0		0		0		2
Florida	At-large	October 7, 1850	1	0		0		0		0		1
Ohio	District	October 8, 1850	21	11[lower-alpha 6]		1	1	0		0		9	1
Pennsylvania	District	October 8, 1850	24[lower-alpha 7]	15	6	0	1	0		0		9	4
South Carolina	District	October 14–15, 1850	7	7		0		0		0		0
Illinois	District	November 5, 1850 (Election Day)[lower-alpha 8]	7	6		0		0		0		1
Michigan	District		3	1	1	0		0		0		2	1
New Jersey	District		5	4	3	0		0		0		1	3
New York	District		34	17	16	0	1	0		0		17	15
Wisconsin	District		3	2[lower-alpha 6]	1	1		0		0		0	1
Massachusetts	District	November 11, 1850	10[lower-alpha 9]	1	1	2	1	0		0		7	1
Delaware	At-large	November 12, 1850	1	1	1	0		0		0		0	1
Late elections (after the March 4, 1851 beginning of the term)
New Hampshire	District	March 11, 1851	4	2		0	1	0		0		2	1
Rhode Island	District	April 2, 1851	2	1	1	0		0		0		1	1
Connecticut	District	April 7, 1851	4	3	1	0	1	0		0		1
Alabama	District	August 4, 1851	7	4	1	0		0		1	1	2
Arkansas	At-large	August 4, 1851	1	1		0		0		0		0
Indiana	District	August 4, 1851	10	8		0	1	0		0		2	1
Kentucky	District	August 4, 1851	10	5	1	0		0		0		5	1
Texas	District	August 4, 1851	2	2		0		0		0		0
North Carolina	District	August 7, 1851	9	3		0		0		0		6
Tennessee	District	August 7, 1851	11	7[lower-alpha 6]		0		0		0		4
California	At-large	September 3, 1851	2[lower-alpha 10]	2	1	0		0		0		0
Maryland	District	October 1, 1851	6	2	1	0		0		0		4[lower-alpha 11]	1
Georgia	District	October 6, 1851	8	0	4	0		2	2	6	6	0	4
Virginia	District	October 23, 1851	15	13		0		0		0		2
Mississippi	District	November 3–4, 1851	4	0	4	0		1	1	3	3	0
Louisiana	District	November 4, 1851	4	2	1	0		0		0		2	1
Total			233	130[lower-alpha 12] 55.8%	17	4 1.7%	5	3 1.3%	3	10 4.3%	10	86[lower-alpha 11] 36.9%	22

One district in Massachusetts had been vacant in the 31st Congress. No new seats were added.

The previous election had 1 Know-Nothing and 1 Independent.

Elections were held August 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

The election was held August 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

California's members were elected late, at-large statewide, September 3, 1851. There were nevertheless seated with the rest of the House at the beginning of the first session.

Elections were held April 7, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

The election was held November 12, 1850.

The election was held October 7, 1850.

Elections were held October 6, 1851.

Elections were held November 5, 1850.

Elections were held August 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held August 5, 1850.

Elections were held August 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held November 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held September 9, 1850.

Elections were held October 1, 1851 elections were after the March 4, 1851 beginning of the new term, but still before the Congress convened in December 1851.

Elections were held November 11, 1850, but at least one district's elections went to multiple ballots into 1851.

Elections were held November 5, 1850.

See Non-voting delegates, below.

Elections were held November 3–4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held August 5, 1850.

Elections were held March 11, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held November 5, 1850.

See Non-voting delegates, below.

Elections were held November 5, 1850.

Elections were held August 7, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held October 8, 1850.

See Non-voting delegates, below.

Elections were held October 8, 1850.

Elections were held April 2, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held October 14–15, 1850.

Elections were held August 7, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held August 4, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

See Non-voting delegates, below.

Elections were held September 3, 1850.

Elections were held October 23, 1851, after the March 4, 1851 beginning of the term, but before the House first convened in December 1851.

Elections were held November 5, 1850.

• 1850 United States elections
  • List of United States House of Representatives elections, 1824–54
  • 1850 and 1851 United States Senate elections
• 31st United States Congress
• 32nd United States Congress

• Dubin, Michael J. (March 1, 1998). United States Congressional Elections, 1788-1997: The Official Results of the Elections of the 1st Through 105th Congresses. McFarland and Company. ISBN 978-0786402830.
• Martis, Kenneth C. (January 1, 1989). The Historical Atlas of Political Parties in the United States Congress, 1789-1989. Macmillan Publishing Company. ISBN 978-0029201701.
• Moore, John L., ed. (1994). Congressional Quarterly's Guide to U.S. Elections (Third ed.). Congressional Quarterly Inc. ISBN 978-0871879967.
• "Party Divisions of the House of Representatives* 1789–Present". Office of the Historian, House of United States House of Representatives. Retrieved January 21, 2015.

• Office of the Historian (Office of Art & Archives, Office of the Clerk, U.S. House of Representatives)