Douglas County, Illinois

Douglas County, Illinois
Douglas County Courthouse and veterans' memorial
Location within the U.S. state of Illinois
Coordinates: 39°46′N 88°13′W / 39.77°N 88.22°W / 39.77; -88.22
Country United States
State Illinois
Founded1859
Named afterStephen A. Douglas
SeatTuscola
Largest cityTuscola
Area
 • Total
417 sq mi (1,080 km2)
 • Land416 sq mi (1,080 km2)
 • Water0.6 sq mi (1.6 km2)  0.1%
Population
 (2020)
 • Total
19,740
 • Estimate 
(2024)
19,824 [1]
 • Density47.7/sq mi (18.4/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th
Websitedouglascountyil.gov

Douglas County is a county located in the U.S. state of Illinois. As of the 2020 United States census, the population was 19,740.[2] The county seat is Tuscola.[3]

History

Douglas County was formed in 1859 out of Coles County. It was named for Stephen A. Douglas,[4] who was elected to the United States Senate in 1858, following the Lincoln–Douglas debates.

Geography

According to the US Census Bureau, the county has a total area of 417 square miles (1,080 km2), of which 416.4 square miles (1,078 km2) is land and 0.6 square miles (1.6 km2) (0.1%) is water.[5]

Climate and weather

Tuscola, Illinois
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
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2.3
 
 
34
18
 
 
2.1
 
 
41
23
 
 
3.1
 
 
53
33
 
 
3.8
 
 
66
42
 
 
4
 
 
76
53
 
 
4.2
 
 
85
62
 
 
4.6
 
 
88
66
 
 
3.7
 
 
86
64
 
 
3.1
 
 
80
56
 
 
2.9
 
 
68
45
 
 
3.7
 
 
52
35
 
 
3.1
 
 
39
24
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[6]
Metric conversion
J
F
M
A
M
J
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A
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58
 
 
1
−8
 
 
54
 
 
5
−5
 
 
80
 
 
12
1
 
 
98
 
 
19
6
 
 
101
 
 
24
12
 
 
105
 
 
29
17
 
 
118
 
 
31
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95
 
 
30
18
 
 
80
 
 
27
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73
 
 
20
7
 
 
95
 
 
11
2
 
 
77
 
 
4
−4
Average max. and min. temperatures in °C
Precipitation totals in mm

In recent years, average temperatures in the county seat of Tuscola have ranged from a low of 18 °F (−8 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −26 °F (−32 °C) was recorded in December 1989 and a record high of 113 °F (45 °C) was recorded in July 1954. Average monthly precipitation ranged from 2.12 inches (54 mm) in February to 4.64 inches (118 mm) in July.[6]

Adjacent counties

Major highways

Demographics

Historical population
CensusPop.Note
18607,140
187013,48488.9%
188015,85317.6%
189017,66911.5%
190019,0978.1%
191019,5912.6%
192019,6040.1%
193017,914−8.6%
194017,590−1.8%
195016,706−5.0%
196019,24315.2%
197018,997−1.3%
198019,7744.1%
199019,464−1.6%
200019,9222.4%
201019,9800.3%
202019,740−1.2%
2024 (est.)19,8240.4%
US Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010-2014[11] 2020[2] 2024[12]

2020 census

Douglas County, Illinois – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / Ethnicity (NH = Non-Hispanic) Pop 1980[13] Pop 1990[14] Pop 2000[15] Pop 2010[16] Pop 2020[17] % 1980 % 1990 % 2000 % 2010 % 2020
White alone (NH) 19,491 19,102 18,993 18,427 17,420 98.57% 98.14% 95.34% 92.23% 88.25%
Black or African American alone (NH) 6 15 59 53 67 0.03% 0.08% 0.30% 0.27% 0.34%
Native American or Alaska Native alone (NH) 24 18 29 31 28 0.12% 0.09% 0.15% 0.16% 0.14%
Asian alone (NH) 34 37 49 82 103 0.17% 0.19% 0.25% 0.41% 0.52%
Native Hawaiian or Pacific Islander alone (NH) x [18] x [19] 2 0 6 x x 0.01% 0.00% 0.03%
Other race alone (NH) 10 0 1 6 34 0.05% 0.00% 0.01% 0.03% 0.17%
Mixed race or Multiracial (NH) x [20] x [21] 99 171 517 x x 0.50% 0.86% 2.62%
Hispanic or Latino (any race) 209 292 690 1,210 1,565 1.06% 1.50% 3.46% 6.06% 7.93%
Total 19,774 19,464 19,922 19,980 19,740 100.00% 100.00% 100.00% 100.00% 100.00%

2010 census

As of the 2010 United States census, there were 19,980 people, 7,720 households, and 5,377 families living in the county.[22] The population density was 48.0 inhabitants per square mile (18.5/km2). There were 8,390 housing units at an average density of 20.1 per square mile (7.8/km2).[5] The racial makeup of the county was 95.7% white, 0.4% Asian, 0.3% black or African American, 0.2% American Indian, 2.3% from other races, and 1.2% from two or more races. Those of Hispanic or Latino origin made up 6.1% of the population.[22] In terms of ancestry, 29.6% were German, 12.6% were American, 12.1% were English, and 10.7% were Irish.[23]

Of the 7,720 households, 32.6% had children under the age of 18 living with them, 57.0% were married couples living together, 8.5% had a female householder with no husband present, 30.3% were non-families, and 26.1% of all households were made up of individuals. The average household size was 2.57 and the average family size was 3.11. The median age was 38.7 years.[22]

The median income for a household in the county was $46,941 and the median income for a family was $60,352. Males had a median income of $41,318 versus $28,731 for females. The per capita income for the county was $21,438. About 7.1% of families and 10.2% of the population were below the poverty line, including 14.0% of those under age 18 and 7.2% of those age 65 or over.[24]

Communities

Cities

Villages

Unincorporated communities

Townships

Politics

Douglas is a strongly Republican county. Apart from a narrow plurality of thirty-two votes to Bill Clinton in 1992, it has voted Republican in every Presidential election since 1968, and in all but five overall since 1880. Despite its long-time Republican leanings, Hillary Clinton's 2016 performance of gaining a mere 23.8 percent of the county's vote stands over six percent worse than any Democrat since the Civil War.

United States presidential election results for Douglas County, Illinois[25]
Year Republican Democratic Third party(ies)
№  % №  % №  %
1892 2,246 50.48% 1,999 44.93% 204 4.59%
1896 2,666 54.78% 2,140 43.97% 61 1.25%
1900 2,733 55.46% 2,106 42.74% 89 1.81%
1904 2,518 54.80% 1,685 36.67% 392 8.53%
1908 2,656 55.33% 1,917 39.94% 227 4.73%
1912 1,386 31.03% 1,633 36.56% 1,448 32.42%
1916 4,564 52.17% 3,768 43.07% 416 4.76%
1920 4,885 65.21% 2,308 30.81% 298 3.98%
1924 4,046 55.65% 2,315 31.84% 909 12.50%
1928 4,890 68.19% 2,239 31.22% 42 0.59%
1932 3,108 37.74% 4,954 60.15% 174 2.11%
1936 4,606 47.51% 5,029 51.88% 59 0.61%
1940 5,451 54.34% 4,513 44.99% 67 0.67%
1944 4,684 58.29% 3,323 41.36% 28 0.35%
1948 4,181 58.65% 2,893 40.58% 55 0.77%
1952 5,530 67.10% 2,706 32.84% 5 0.06%
1956 5,559 66.66% 2,774 33.27% 6 0.07%
1960 5,761 61.95% 3,532 37.98% 6 0.06%
1964 4,223 47.35% 4,695 52.65% 0 0.00%
1968 5,058 59.25% 2,824 33.08% 655 7.67%
1972 5,840 68.66% 2,656 31.23% 10 0.12%
1976 4,635 54.39% 3,826 44.90% 61 0.72%
1980 5,330 64.26% 2,564 30.91% 400 4.82%
1984 5,691 66.14% 2,886 33.54% 27 0.31%
1988 4,378 57.62% 3,184 41.91% 36 0.47%
1992 3,309 39.98% 3,341 40.37% 1,626 19.65%
1996 3,272 46.66% 2,955 42.14% 786 11.21%
2000 4,734 58.07% 3,215 39.44% 203 2.49%
2004 5,702 66.77% 2,767 32.40% 71 0.83%
2008 5,005 59.73% 3,228 38.52% 146 1.74%
2012 5,334 67.34% 2,430 30.68% 157 1.98%
2016 5,698 69.53% 1,949 23.78% 548 6.69%
2020 6,227 71.08% 2,335 26.66% 198 2.26%
2024 6,076 71.92% 2,198 26.02% 174 2.06%

See also

References

  1. ^ "County Population Totals and Components of Change: 2020–2024". United States Census Bureau. U.S. Department of Commerce. March 2025. Retrieved August 31, 2025.
  2. ^ a b 2020 Population and Housing State Data | Illinois
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 108.
  5. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". US Census Bureau. Archived from the original on February 12, 2020. Retrieved July 11, 2015.
  6. ^ a b "Monthly Averages for Tuscola IL". The Weather Channel. Retrieved January 27, 2011.
  7. ^ "US Decennial Census". US Census Bureau. Retrieved July 4, 2014.
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 4, 2014.
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". US Census Bureau. Retrieved July 4, 2014.
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). US Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved July 4, 2014.
  11. ^ "State & County QuickFacts". US Census Bureau. Archived from the original on June 6, 2011. Retrieved July 4, 2014.
  12. ^ Douglas county, IL Quickfacts Census USA
  13. ^ "1980 Census of Population - General Population Characteristics - Illinois- Table 14 - Persons by Race and Table 16 (p. 18-28) - Total Persons and Spanish Origin Persons by Type of Spanish Origin and Race (p. 29-39)" (PDF). United States Census Bureau.
  14. ^ "1990 Census of Population - General Population Characteristics - Illinois - Table 6 - Race and Hispanic Orogin" (PDF). United States Census Bureau.
  15. ^ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Douglas County, Illinois". United States Census Bureau.
  16. ^ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Douglas County, Illinois". United States Census Bureau.
  17. ^ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Douglas County, Illinois". United States Census Bureau.
  18. ^ included in the Asian category in the 1980 Census
  19. ^ included in the Asian category in the 1990 Census
  20. ^ not an option in the 1980 Census
  21. ^ not an option in the 1990 Census
  22. ^ a b c "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". US Census Bureau. Archived from the original on February 13, 2020. Retrieved July 11, 2015.
  23. ^ "Selected Social Characteristics in the United States – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. Archived from the original on February 13, 2020. Retrieved July 11, 2015.
  24. ^ "Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. Archived from the original on February 13, 2020. Retrieved July 11, 2015.
  25. ^ Leip, David. "Atlas of US Presidential Elections". uselectionatlas.org. Retrieved November 1, 2018.

39°46′N 88°13′W / 39.77°N 88.22°W / 39.77; -88.22