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Clinton County, Illinois facts for kids

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Clinton County
Clinton County Courthouse
Clinton County Courthouse
Map of Illinois highlighting Clinton County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Country  United States
State  Illinois
Founded 1824
Named for DeWitt Clinton
Seat Carlyle
Largest city Breese
Area
 • Total 503 sq mi (1,300 km2)
 • Land 474 sq mi (1,230 km2)
 • Water 29 sq mi (80 km2)  5.8%
Population
 (2020)
 • Total 36,899
 • Estimate 
(2023)
36,785 Decrease
 • Density 73.36/sq mi (28.324/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 12th

Clinton County is a place in the state of Illinois, USA. In 2020, about 36,899 people lived there. The main town, or county seat, is Carlyle. Clinton County is also part of the larger St. Louis area, which includes parts of both Missouri and Illinois.

History of Clinton County

Long ago, in 1805, a special road was made through this area. It connected the capital of the Indiana Territory to St. Louis, Missouri. Later, in 1808, a wagon road was built. This road helped people travel and cross the Kaskaskia River at Carlyle.

People started settling in Clinton County by 1814. The county itself was officially created on December 27, 1824. It was formed from parts of other nearby counties. The county was named after DeWitt Clinton. He was the seventh Governor of New York and helped build the famous Erie Canal.

Crossing the Kaskaskia River became much easier in 1859. That's when the General Dean Suspension Bridge was built. Before the bridge, people had to use a ferry or a simple "mud bridge." In 1953, the bridge was named after William F. Dean.

Geography and Nature

Clinton County covers about 503 square miles. Most of this area is land, but about 29 square miles is water. You can find some nice parks here, like Eldon Hazlet State Recreation Area and South Shore State Park. The Kaskaskia River forms the southern border of the county.

Weather and Climate

Weather chart for Carlyle, Illinois
J F M A M J J A S O N D
 
 
2.2
 
36
19
 
 
2.4
 
43
23
 
 
3.8
 
54
33
 
 
3.9
 
65
43
 
 
4.2
 
75
53
 
 
4.4
 
84
62
 
 
3.7
 
88
67
 
 
2.8
 
86
65
 
 
3.1
 
79
57
 
 
3
 
68
45
 
 
3.8
 
54
35
 
 
3.2
 
42
24
temperatures in °F
precipitation totals in inches
source: The Weather Channel

The weather in Carlyle, the county seat, changes throughout the year. In January, the average low temperature is about 19°F (around -7°C). In July, the average high temperature is about 88°F (around 31°C). The county gets the most rain in June.

How to Get Around (Transit)

  • South Central Transit

Main Roads and Highways

  • I-64.svg Interstate 64
  • US 50.svg US Route 50
  • Illinois 127.svg Illinois Route 127
  • Illinois 160.svg Illinois Route 160
  • Illinois 161.svg Illinois Route 161
  • Illinois 177.svg Illinois Route 177

Neighboring Counties

People of Clinton County (Demographics)

Historical population
Census Pop.
1830 2,330
1840 3,718 59.6%
1850 5,139 38.2%
1860 10,941 112.9%
1870 16,285 48.8%
1880 18,714 14.9%
1890 17,411 −7.0%
1900 19,824 13.9%
1910 22,832 15.2%
1920 22,947 0.5%
1930 21,369 −6.9%
1940 22,912 7.2%
1950 22,594 −1.4%
1960 24,029 6.4%
1970 28,315 17.8%
1980 32,617 15.2%
1990 33,944 4.1%
2000 35,535 4.7%
2010 37,762 6.3%
2020 36,899 −2.3%
2023 (est.) 36,785 −2.6%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010

In 2010, there were 37,762 people living in Clinton County. Most people (93.4%) were white. About 3.5% were black or African American. Many families in the county have German roots (54.8%).

The average age of people in the county was about 39.3 years old. Many households (32.7%) had children under 18 living with them.

Schools in Clinton County

  • Carlyle Community Unit School District 1
  • Patoka Community Unit School District 100
  • Sandoval Community Unit School District 501
  • Wesclin Community Unit School District 3
  • Central Community High School, Breese
  • Mater Dei Catholic High School, Breese

Towns and Villages

Clinton County has several cities and villages where people live.

Cities

Villages

Townships

  • Breese
  • Brookside
  • Carlyle
  • Clement
  • Germantown
  • Irishtown
  • Lake
  • Looking Glass
  • Meridian
  • Saint Rose
  • Santa Fe
  • Sugar Creek
  • Wade
  • Wheatfield

Unincorporated Communities

Images for kids

See also

Kids robot.svg In Spanish: Condado de Clinton (Illinois) para niños

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Clinton County, Illinois Facts for Kids. Kiddle Encyclopedia.