US Census Data

Warren County, Illinois

6 cities & places have their primary county here.

Population
16,576
-3.3%’19–’23
Median household income
$64,650
+28.5%’19–’23
Median home value
$101,300
+20.7%’19–’23

Warren County is a county in Illinois with a population of 16,576. 6 cities and places have their primary county here. The median household income of $64,650 is below the Illinois median ($81,702).

Between 2019 and 2023, Warren County's population declined 3.3% from 17,146 to 16,576, while its median household income rose 28.5% from $50,310 to $64,650.

White (non-Hispanic) residents are the largest group, 81.7% of the population. 82.3% of workers drive to work alone.

Demographics

ACS 2019–2023
Population
16,576
Median age
38.7 yrs
Median household income
$64,650
Median home value
$101,300
Median gross rent
$694
Housing units
7,598
Homeownership rate
78.1%
Bachelor's degree or higher
22.0%
Unemployment rate
5.2%

Trends

ACS 5-year · 2019–2023
Population
17,14616,576
Median household income
$50,310$64,650
Median home value
$83,900$101,300
Median gross rent
$628$694
YearPopulationMedian household incomeMedian home valueMedian gross rent
201917,146$50,310$83,900$628
202016,981$54,291$86,900$608
202116,887$59,673$87,400$650
202216,760$62,700$98,200$697
202316,576$64,650$101,300$694

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

Age distribution

CountShare
Under 58995.4%
5 to 172,78516.8%
18 to 242,05712.4%
25 to 341,74510.5%
35 to 441,74210.5%
45 to 541,89011.4%
55 to 642,20313.3%
65 to 741,91011.5%
75 and over1,3458.1%

Race & ethnicity

CountShare
White (non-Hispanic)13,54481.7%
Black or African American4622.8%
American Indian & Alaska Native230.1%
Asian4002.4%
Native Hawaiian & Pacific Islander180.1%
Some other race230.1%
Two or more races3151.9%
Hispanic or Latino (any race)1,79110.8%

Educational attainment (age 25+)

CountShare
No high school diploma1,45513.4%
High school graduate3,72434.4%
Some college or associate's3,26930.2%
Bachelor's degree1,54114.2%
Graduate or professional degree8467.8%

Commute to work

Mean travel time to work
19 min

How workers get to work

CountShare
Drove alone6,28982.3%
Carpooled5156.7%
Public transit300.4%
Walked3034.0%
Bicycle50.1%
Worked from home4195.5%
Other means771.0%

Travel time

CountShare
Under 15 min3,47848.2%
15 to 29 min2,17530.1%
30 to 44 min96813.4%
45 to 59 min1882.6%
60+ min4105.7%

Households

Average household size
2.32
Poverty rate
12.8% (1,996 of 15,546)
CountShare
Family households4,39065.3%
Nonfamily households2,33234.7%

Housing

Median year structure built
1956

Occupancy

CountShare
Occupied6,72288.5%
Vacant87611.5%

Tenure (of occupied units)

CountShare
Owner-occupied5,25178.1%
Renter-occupied1,47121.9%

Units in structure

CountShare
1-unit, detached6,62087.1%
1-unit, attached761.0%
2 to 4 units2192.9%
5 to 19 units2763.6%
20 or more units2363.1%
Mobile home & other1712.3%

Geography

County GEOID
17187
State
Illinois
Land area
542 sq mi
Water area
0.71 sq mi
Center point
40.8504, -90.6202

Cities & places

6

Compare with nearby counties

5

Illinois rankings

21

Other counties in Illinois

101