Union County vs Warren County

A side-by-side comparison of Union County and Warren County: population, income, housing, and more.

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

Union County has the higher population (16,972 vs 16,576 in Warren County). Warren County has the higher median household income ($64,650 vs $56,420 in Union County). Union County has the higher median home value ($131,700 vs $101,300 in Warren County).

Population, income & housing

	Union County	Warren County
Population	16,972	16,576
Median age	44.3 yrs	38.7 yrs
Median household income	$56,420	$64,650
Median home value	$131,700	$101,300
Median gross rent	$658	$694
Housing units	7,861	7,598
Homeownership rate	76.8%	78.1%
Bachelor's degree or higher	20.9%	22.0%
Unemployment rate	5.2%	5.2%

Trends (ACS 5-year, 2019–2023)

	Union County	Warren County
Population	16,968 → 16,972 (+0.0%)	17,146 → 16,576 (-3.3%)
Median household income	$50,625 → $56,420 (+11.4%)	$50,310 → $64,650 (+28.5%)
Median home value	$109,900 → $131,700 (+19.8%)	$83,900 → $101,300 (+20.7%)
Median gross rent	$612 → $658 (+7.5%)	$628 → $694 (+10.5%)

Union County

Population

16,96816,972

Median household income

$50,625$56,420

Median home value

$109,900$131,700

Median gross rent

$612$658

Warren County

Population

17,14616,576

Median household income

$50,310$64,650

Median home value

$83,900$101,300

Median gross rent

$628$694

Age & race/ethnicity

Age distribution (share)

	Union County	Warren County
Under 5	5.4%	5.4%
5 to 17	16.0%	16.8%
18 to 24	6.5%	12.4%
25 to 34	10.9%	10.5%
35 to 44	11.8%	10.5%
45 to 54	13.0%	11.4%
55 to 64	14.2%	13.3%
65 to 74	12.4%	11.5%
75 and over	9.7%	8.1%

Race & ethnicity (share)

	Union County	Warren County
White (non-Hispanic)	90.1%	81.7%
Black or African American	0.8%	2.8%
American Indian & Alaska Native	0.1%	0.1%
Asian	0.4%	2.4%
Native Hawaiian & Pacific Islander	0.1%	0.1%
Some other race	0.0%	0.1%
Two or more races	3.3%	1.9%
Hispanic or Latino	5.2%	10.8%

Educational attainment (age 25+)

Share of adults 25+

	Union County	Warren County
No high school diploma	13.0%	13.4%
High school graduate	34.9%	34.4%
Some college or associate's	31.3%	30.2%
Bachelor's degree	14.1%	14.2%
Graduate or professional degree	6.8%	7.8%

Commute to work

How workers get to work (share)

	Union County	Warren County
Drove alone	84.1%	82.3%
Carpooled	7.2%	6.7%
Public transit	0.0%	0.4%
Walked	1.1%	4.0%
Bicycle	0.0%	0.1%
Worked from home	5.6%	5.5%
Other means	2.0%	1.0%

Housing

Units in structure (share)

	Union County	Warren County
1-unit, detached	76.1%	87.1%
1-unit, attached	0.9%	1.0%
2 to 4 units	4.6%	2.9%
5 to 19 units	1.8%	3.6%
20 or more units	3.0%	3.1%
Mobile home & other	13.6%	2.3%

Poverty & households

	Union County	Warren County
Poverty rate	19.4%	12.8%
Average household size	2.34	2.32
Mean commute (minutes)	26	19
Median year structure built	1975	1956