Clark County, Illinois

5 cities & places have their primary county here.

Population: 15,328
Median household income: $70,625
Median home value: $123,100

Home to 15,328 residents, Clark County is one of Illinois's counties. 5 cities and places have their primary county here. The median household income of $70,625 is below the Illinois median ($81,702).

From 2019 to 2023, Clark County's population declined 2.5% from 15,716 to 15,328, while its median household income rose 24.9% from $56,531 to $70,625.

24.3% of adults 25 and older hold a bachelor's degree or higher. Owners occupy 81.7% of the area's occupied homes.

Demographics

ACS 2019–2023

Population: 15,328
Median age: 42.0 yrs
Median household income: $70,625
Median home value: $123,100
Median gross rent: $828
Housing units: 7,333
Homeownership rate: 81.7%
Bachelor's degree or higher: 24.3%
Unemployment rate: 4.0%

Trends

ACS 5-year · 2019–2023

Population

15,71615,328

Median household income

$56,531$70,625

Median home value

$92,500$123,100

Median gross rent

$687$828

Year	Population	Median household income	Median home value	Median gross rent
2019	15,716	$56,531	$92,500	$687
2020	15,602	$59,481	$94,900	$697
2021	15,587	$66,067	$102,200	$733
2022	15,467	$65,874	$112,400	$816
2023	15,328	$70,625	$123,100	$828

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

Age distribution

Under 55.5%

5 to 1716.8%

18 to 247.3%

25 to 3411.3%

35 to 4411.9%

45 to 5412.8%

55 to 6414.7%

65 to 7411.4%

75 and over8.2%

	Count	Share
Under 5	847	5.5%
5 to 17	2,576	16.8%
18 to 24	1,115	7.3%
25 to 34	1,733	11.3%
35 to 44	1,824	11.9%
45 to 54	1,963	12.8%
55 to 64	2,252	14.7%
65 to 74	1,755	11.4%
75 and over	1,263	8.2%

Race & ethnicity

	Count	Share
White (non-Hispanic)	14,649	95.6%
Black or African American	106	0.7%
American Indian & Alaska Native	5	0.0%
Asian	25	0.2%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	269	1.8%
Hispanic or Latino (any race)	274	1.8%

Educational attainment (age 25+)

No high school diploma8.0%

High school graduate35.3%

Some college or associate's32.5%

Bachelor's degree14.3%

Graduate or professional degree9.9%

	Count	Share
No high school diploma	859	8.0%
High school graduate	3,805	35.3%
Some college or associate's	3,507	32.5%
Bachelor's degree	1,546	14.3%
Graduate or professional degree	1,073	9.9%

Commute to work

Mean travel time to work: 26 min

Drove alone82.1%

Carpooled10.1%

Public transit0.3%

Walked1.2%

Bicycle0.0%

Worked from home5.4%

Other means0.8%

How workers get to work

	Count	Share
Drove alone	5,626	82.1%
Carpooled	691	10.1%
Public transit	21	0.3%
Walked	81	1.2%
Bicycle	0	0.0%
Worked from home	373	5.4%
Other means	58	0.8%

Travel time

	Count	Share
Under 15 min	2,277	35.2%
15 to 29 min	1,792	27.7%
30 to 44 min	1,567	24.2%
45 to 59 min	372	5.7%
60+ min	469	7.2%

Households

Average household size: 2.28
Poverty rate: 9.5% (1,425 of 15,023)

	Count	Share
Family households	4,535	68.7%
Nonfamily households	2,062	31.3%

Housing

Median year structure built: 1969

Occupancy

	Count	Share
Occupied	6,597	90.0%
Vacant	736	10.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,390	81.7%
Renter-occupied	1,207	18.3%

1-unit, detached81.1%

1-unit, attached0.8%

2 to 4 units4.8%

5 to 19 units4.7%

20 or more units1.4%

Mobile home & other7.3%

Units in structure

	Count	Share
1-unit, detached	5,947	81.1%
1-unit, attached	57	0.8%
2 to 4 units	350	4.8%
5 to 19 units	343	4.7%
20 or more units	99	1.4%
Mobile home & other	537	7.3%

Geography

County GEOID: 17023
State: Illinois
Land area: 501 sq mi
Water area: 3.37 sq mi
Center point: 39.3323, -87.7917

Cities & places

Compare with nearby counties

Other counties in Illinois

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