Carroll County vs Clark County

A side-by-side comparison of Carroll County and Clark County: population, income, housing, and more.

Carroll County and Clark County are counties in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Carroll County has the higher population (15,621 vs 15,328 in Clark County). Clark County has the higher median household income ($70,625 vs $60,871 in Carroll County). Clark County has the higher median home value ($123,100 vs $113,500 in Carroll County).

Population, income & housing

	Carroll County	Clark County
Population	15,621	15,328
Median age	44.9 yrs	42.0 yrs
Median household income	$60,871	$70,625
Median home value	$113,500	$123,100
Median gross rent	$784	$828
Housing units	8,190	7,333
Homeownership rate	77.8%	81.7%
Bachelor's degree or higher	18.2%	24.3%
Unemployment rate	4.3%	4.0%

Trends (ACS 5-year, 2019–2023)

	Carroll County	Clark County
Population	14,466 → 15,621 (+8.0%)	15,716 → 15,328 (-2.5%)
Median household income	$52,410 → $60,871 (+16.1%)	$56,531 → $70,625 (+24.9%)
Median home value	$106,100 → $113,500 (+7.0%)	$92,500 → $123,100 (+33.1%)
Median gross rent	$631 → $784 (+24.2%)	$687 → $828 (+20.5%)

Carroll County

Population

14,46615,621

Median household income

$52,410$60,871

Median home value

$106,100$113,500

Median gross rent

$631$784

Clark County

Population

15,71615,328

Median household income

$56,531$70,625

Median home value

$92,500$123,100

Median gross rent

$687$828

Age & race/ethnicity

Age distribution (share)

	Carroll County	Clark County
Under 5	4.3%	5.5%
5 to 17	13.8%	16.8%
18 to 24	8.3%	7.3%
25 to 34	11.4%	11.3%
35 to 44	12.4%	11.9%
45 to 54	11.6%	12.8%
55 to 64	14.2%	14.7%
65 to 74	13.9%	11.4%
75 and over	10.1%	8.2%

Race & ethnicity (share)

	Carroll County	Clark County
White (non-Hispanic)	88.4%	95.6%
Black or African American	3.7%	0.7%
American Indian & Alaska Native	0.3%	0.0%
Asian	0.7%	0.2%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.1%	0.0%
Two or more races	1.8%	1.8%
Hispanic or Latino	5.1%	1.8%

Educational attainment (age 25+)

Share of adults 25+

	Carroll County	Clark County
No high school diploma	12.3%	8.0%
High school graduate	35.8%	35.3%
Some college or associate's	33.7%	32.5%
Bachelor's degree	13.4%	14.3%
Graduate or professional degree	4.8%	9.9%

Commute to work

How workers get to work (share)

	Carroll County	Clark County
Drove alone	80.9%	82.1%
Carpooled	7.5%	10.1%
Public transit	0.9%	0.3%
Walked	3.6%	1.2%
Bicycle	0.2%	0.0%
Worked from home	6.3%	5.4%
Other means	0.5%	0.8%

Housing

Units in structure (share)

	Carroll County	Clark County
1-unit, detached	85.5%	81.1%
1-unit, attached	0.7%	0.8%
2 to 4 units	4.0%	4.8%
5 to 19 units	3.0%	4.7%
20 or more units	2.5%	1.4%
Mobile home & other	4.3%	7.3%

Poverty & households

	Carroll County	Clark County
Poverty rate	13.6%	9.5%
Average household size	2.22	2.28
Mean commute (minutes)	22	26
Median year structure built	1959	1969