Clinton County, Illinois

14 cities & places have their primary county here.

Population: 36,899
Median household income: $82,314
Median home value: $180,500

Clinton County is a county in Illinois with a population of 36,899. 14 cities and places have their primary county here. At $82,314, its median household income sits in line with Illinois's $81,702.

From 2019 to 2023, Clinton County's population declined 2.0% from 37,634 to 36,899, while its median household income rose 23.5% from $66,639 to $82,314.

80.9% of homes are single-family detached houses. The typical home was built around 1977.

Demographics

ACS 2019–2023

Population: 36,899
Median age: 41.4 yrs
Median household income: $82,314
Median home value: $180,500
Median gross rent: $934
Housing units: 15,677
Homeownership rate: 79.3%
Bachelor's degree or higher: 24.4%
Unemployment rate: 3.3%

Trends

ACS 5-year · 2019–2023

Population

37,63436,899

Median household income

$66,639$82,314

Median home value

$146,200$180,500

Median gross rent

$808$934

Year	Population	Median household income	Median home value	Median gross rent
2019	37,634	$66,639	$146,200	$808
2020	37,549	$67,179	$145,700	$777
2021	37,048	$72,468	$152,900	$825
2022	36,998	$78,054	$171,500	$888
2023	36,899	$82,314	$180,500	$934

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.7%

5 to 1715.9%

18 to 246.9%

25 to 3412.6%

35 to 4413.4%

45 to 5412.3%

55 to 6415.1%

65 to 7410.7%

75 and over7.5%

	Count	Share
Under 5	2,095	5.7%
5 to 17	5,871	15.9%
18 to 24	2,552	6.9%
25 to 34	4,636	12.6%
35 to 44	4,928	13.4%
45 to 54	4,544	12.3%
55 to 64	5,581	15.1%
65 to 74	3,931	10.7%
75 and over	2,761	7.5%

Race & ethnicity

	Count	Share
White (non-Hispanic)	33,380	90.5%
Black or African American	1,147	3.1%
American Indian & Alaska Native	38	0.1%
Asian	206	0.6%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	11	0.0%
Two or more races	687	1.9%
Hispanic or Latino (any race)	1,430	3.9%

Educational attainment (age 25+)

No high school diploma8.0%

High school graduate32.1%

Some college or associate's35.5%

Bachelor's degree17.0%

Graduate or professional degree7.4%

	Count	Share
No high school diploma	2,101	8.0%
High school graduate	8,466	32.1%
Some college or associate's	9,365	35.5%
Bachelor's degree	4,486	17.0%
Graduate or professional degree	1,963	7.4%

Commute to work

Mean travel time to work: 26 min

Drove alone79.1%

Carpooled6.5%

Public transit0.5%

Walked2.4%

Bicycle0.1%

Worked from home11.1%

Other means0.4%

How workers get to work

	Count	Share
Drove alone	14,166	79.1%
Carpooled	1,166	6.5%
Public transit	86	0.5%
Walked	426	2.4%
Bicycle	16	0.1%
Worked from home	1,981	11.1%
Other means	63	0.4%

Travel time

	Count	Share
Under 15 min	5,442	34.2%
15 to 29 min	4,325	27.2%
30 to 44 min	2,998	18.8%
45 to 59 min	1,700	10.7%
60+ min	1,458	9.2%

Households

Average household size: 2.41
Poverty rate: 7.5% (2,613 of 34,857)

	Count	Share
Family households	9,634	66.6%
Nonfamily households	4,829	33.4%

Housing

Median year structure built: 1977

Occupancy

	Count	Share
Occupied	14,463	92.3%
Vacant	1,214	7.7%

Tenure (of occupied units)

	Count	Share
Owner-occupied	11,475	79.3%
Renter-occupied	2,988	20.7%

1-unit, detached80.9%

1-unit, attached1.9%

2 to 4 units5.4%

5 to 19 units1.4%

20 or more units1.8%

Mobile home & other8.5%

Units in structure

	Count	Share
1-unit, detached	12,685	80.9%
1-unit, attached	297	1.9%
2 to 4 units	845	5.4%
5 to 19 units	227	1.4%
20 or more units	287	1.8%
Mobile home & other	1,336	8.5%

Geography

County GEOID: 17027
State: Illinois
Land area: 474 sq mi
Water area: 29 sq mi
Center point: 38.6063, -89.4262

Cities & places

Compare with nearby counties

Other counties in Illinois

101