Lee County, Illinois

Lee County, Illinois, had an estimated population of 32,914 in 2025 across 1,877 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Illinois's counties and nationally.

Population
32,914
2025 estimate
Area
1,877 km²
Density
18
per km²
Median income
$70,292
household, ACS 2024
Median age
43.1
years, ACS 2024
How Illinois's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202487.4%
Median Gross Rent2024$894
Median Home Value2024$154,600
Owner-Occupied Homes202473.6%
Vacant Homes202411.1%
Demography
IndicatorValue
Aged 65 and Over202421.3%
American Indian & Alaska Native20240.0%
Asian, non-Hispanic20240.7%
Average Household Size2024people2.3
Black, non-Hispanic20245.3%
Foreign-Born20242.2%
Hispanic or Latino20247.6%
Median Age2024years43.1
Sex Ratio2024per 1,000 males890
Speak a Language Other Than English20244.6%
Under 18202419.6%
Veterans20246.4%
White, non-Hispanic202483.4%
Economy
IndicatorValue
Below Poverty Line202411.8%
Households on SNAP202415.4%
Income Inequality2024index0.435
Median Household Income2024$70,292
Per Capita Income2024$35,945
Unemployment Rate20245.2%
Education
IndicatorValue
Bachelor's Degree or Higher202419.4%
High School or Higher202491.2%
Health Coverage
IndicatorValue
No Health Insurance20243.8%
With a Disability202416.2%
Population & Density
IndicatorValue
Population202532,914
Population Density2025/km²18
Work & Commute
IndicatorValue
Commute by Public Transit20240.6%
Households with No Vehicle20246.6%
Mean Commute Time2024minutes24.6
Work from Home20245.5%
Compare Lee County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.