Jo Daviess County, Illinois

Jo Daviess County, Illinois, had an estimated population of 21,594 in 2025 across 1,556 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
21,594
2025 estimate
Area
1,556 km²
Density
14
per km²
Median income
$73,993
household, ACS 2024
Median age
51.5
years, ACS 2024
How Illinois's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202487.2%
Median Gross Rent2024$825
Median Home Value2024$209,900
Owner-Occupied Homes202480.4%
Vacant Homes202422.7%
Demography
IndicatorValue
Aged 65 and Over202429.9%
American Indian & Alaska Native20240.1%
Asian, non-Hispanic20240.5%
Average Household Size2024people2.1
Black, non-Hispanic20240.8%
Foreign-Born20241.9%
Hispanic or Latino20244.2%
Median Age2024years51.5
Sex Ratio2024per 1,000 males1,000
Speak a Language Other Than English20242.6%
Under 18202418.2%
Veterans20247.3%
White, non-Hispanic202491.9%
Economy
IndicatorValue
Below Poverty Line20247.8%
Households on SNAP20248.4%
Income Inequality2024index0.428
Median Household Income2024$73,993
Per Capita Income2024$44,251
Unemployment Rate20243.6%
Education
IndicatorValue
Bachelor's Degree or Higher202428.9%
High School or Higher202493.2%
Health Coverage
IndicatorValue
No Health Insurance20244.7%
With a Disability202413.8%
Population & Density
IndicatorValue
Population202521,594
Population Density2025/km²14
Work & Commute
IndicatorValue
Commute by Public Transit20240.6%
Households with No Vehicle20247.0%
Mean Commute Time2024minutes22.1
Work from Home202412.5%
Compare Jo Daviess 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.