Montgomery County, Illinois

Montgomery County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 30,104.[1] Its county seat is Hillsboro.[2][3]

Not to be confused with Montgomery, Illinois.

Montgomery County
U.S. county
Location within the U.S. state of Illinois
Illinois's location within the U.S.
Coordinates: 39°14′N 89°29′W
Country United States
State Illinois
Founded1821
Named forRichard Montgomery
SeatHillsboro
Largest cityLitchfield
Area
 • Total710 sq mi (1,800 km2)
 • Land704 sq mi (1,820 km2)
 • Water6.0 sq mi (16 km2)  0.8%
Population
 (2010)
 • Total30,104
 • Estimate 
(2018)
28,601
 • Density42/sq mi (16/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district13th
Websitewww.montgomeryco.com

History

Montgomery County was formed in 1821 out of Bond and Madison counties. It was named in honor of Richard Montgomery, an American Revolutionary War general killed in 1775 while attempting to capture Quebec City, Canada.[4] Perrin's 1882 History of Montgomery County relates that the County was named in honor of Gen. Montgomery, but goes on to say that "others are dubious as to whence it received its name."

  • Montgomery County from the time of its creation to 1827
  • Montgomery County between 1827 and 1839
  • Montgomery in 1839, reduced to its present borders

Geography

According to the U.S. Census Bureau, the county has a total area of 710 square miles (1,800 km2), of which 704 square miles (1,820 km2) is land and 6.0 square miles (16 km2) (0.8%) is water.[5]

Climate and weather
Hillsboro, Illinois
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
2.2
 
 
37
21
 
 
2
 
 
44
26
 
 
3.6
 
 
56
35
 
 
4.2
 
 
68
45
 
 
4.3
 
 
78
55
 
 
4.1
 
 
87
64
 
 
3.5
 
 
91
68
 
 
3.5
 
 
89
66
 
 
3.2
 
 
82
58
 
 
2.9
 
 
71
47
 
 
3.8
 
 
55
37
 
 
3
 
 
42
26
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[6]

In recent years, average temperatures in the county seat of Hillsboro have ranged from a low of 21 °F (−6 °C) in January to a high of 91 °F (33 °C) in July, although a record low of −22 °F (−30 °C) was recorded in February 1905 and a record high of 114 °F (46 °C) was recorded in July 1954. Average monthly precipitation ranged from 2.00 inches (51 mm) in February to 4.31 inches (109 mm) in May.[6]

Adjacent counties

Transportation

Major highways

Airports

Litchfield Municipal Airport is located in Montgomery County, two nautical miles (3.7 km) southwest of the central business district of Litchfield, Illinois.

Demographics
Historical population
CensusPop.%±
18302,953—
18404,49052.0%
18506,27739.8%
186013,979122.7%
187025,31481.1%
188028,07810.9%
189030,0036.9%
190030,8362.8%
191035,31114.5%
192041,40317.3%
193035,278−14.8%
194034,499−2.2%
195032,460−5.9%
196031,244−3.7%
197030,260−3.1%
198031,6864.7%
199030,728−3.0%
200030,652−0.2%
201030,104−1.8%
2018 (est.)28,601[7]−5.0%
U.S. Decennial Census[8]
1790-1960[9] 1900-1990[10]
1990-2000[11] 2010-2013[1]

As of the 2010 United States Census, there were 30,104 people, 11,652 households, and 7,806 families living in the county.[12] The population density was 42.8 inhabitants per square mile (16.5/km2). There were 13,080 housing units at an average density of 18.6 per square mile (7.2/km2).[5] The racial makeup of the county was 95.1% white, 3.2% black or African American, 0.4% Asian, 0.2% American Indian, 0.5% from other races, and 0.7% from two or more races. Those of Hispanic or Latino origin made up 1.5% of the population.[12] In terms of ancestry, 27.8% were German, 11.2% were Irish, 10.1% were English, and 9.8% were American.[13]

Of the 11,652 households, 29.8% had children under the age of 18 living with them, 51.7% were married couples living together, 10.2% had a female householder with no husband present, 33.0% were non-families, and 28.4% of all households were made up of individuals. The average household size was 2.38 and the average family size was 2.87. The median age was 41.9 years.[12]

The median income for a household in the county was $40,864 and the median income for a family was $56,945. Males had a median income of $40,749 versus $29,426 for females. The per capita income for the county was $21,700. About 10.9% of families and 14.0% of the population were below the poverty line, including 22.7% of those under age 18 and 7.4% of those age 65 or over.[14]

Communities

Cities

Villages

Unincorporated communities

Townships

Former Townships

Notable people

Politics
Presidential elections results
Presidential elections results[15]
Year Republican Democratic Third parties
2020 69.5% 9,544 28.5% 3,905 2.0% 278
2016 66.5% 8,630 27.0% 3,504 6.5% 844
2012 55.6% 6,776 41.5% 5,058 2.9% 354
2008 47.6% 6,150 50.3% 6,491 2.1% 268
2004 53.0% 6,851 46.2% 5,979 0.8% 100
2000 47.6% 6,226 50.0% 6,542 2.5% 325
1996 37.8% 4,770 50.2% 6,338 12.1% 1,523
1992 29.7% 4,407 50.0% 7,424 20.3% 3,006
1988 46.4% 6,388 53.0% 7,293 0.6% 78
1984 56.1% 8,191 43.6% 6,360 0.4% 54
1980 58.0% 8,947 37.1% 5,721 4.8% 747
1976 46.6% 7,379 52.5% 8,322 0.9% 147
1972 56.7% 9,025 43.1% 6,858 0.2% 30
1968 46.2% 7,547 44.8% 7,318 9.0% 1,474
1964 37.8% 6,425 62.2% 10,581 0.0% 0
1960 51.0% 9,178 49.0% 8,815 0.1% 14
1956 56.4% 9,945 43.6% 7,692 0.1% 8
1952 55.0% 10,014 45.0% 8,195 0.1% 16
1948 50.7% 8,348 48.0% 7,902 1.3% 205
1944 52.7% 8,989 46.1% 7,855 1.2% 201
1940 51.7% 10,497 47.5% 9,654 0.9% 174
1936 42.9% 8,140 53.4% 10,132 3.7% 692
1932 34.7% 5,945 61.1% 10,456 4.2% 725
1928 54.3% 8,999 44.6% 7,392 1.1% 184
1924 47.3% 8,022 33.1% 5,622 19.6% 3,331
1920 52.9% 7,429 33.9% 4,756 13.2% 1,854
1916 44.7% 7,065 49.9% 7,903 5.4% 856
1912 18.2% 1,476 45.7% 3,705 36.1% 2,928
1908 45.6% 3,782 47.2% 3,909 7.2% 596
1904 48.0% 3,489 43.7% 3,181 8.3% 602
1900 45.4% 3,583 51.7% 4,078 2.9% 225
1896 46.0% 3,622 52.3% 4,117 1.7% 132
1892 41.0% 2,935 51.8% 3,707 7.2% 515

See also

References
  1. "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved July 7, 2014.
  2. "Hillsboro Illinois". City of Hillsboro. Retrieved February 15, 2012.
  3. "Find a County". National Association of Counties. Retrieved June 7, 2011.
  4. Allan H. Keith, Historical Stories: About Greenville and Bond County, IL. Consulted on August 15, 2007.
  5. "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 12, 2020. Retrieved July 12, 2015.
  6. "Monthly Averages for Hillsboro, Illinois". The Weather Channel. Retrieved January 27, 2011.
  7. "Population and Housing Unit Estimates". Retrieved November 3, 2019.
  8. "U.S. Decennial Census". United States Census Bureau. Retrieved July 7, 2014.
  9. "Historical Census Browser". University of Virginia Library. Retrieved July 7, 2014.
  10. "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 7, 2014.
  11. "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 7, 2014.
  12. "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  13. "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  14. "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  15. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved November 11, 2018.

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