Jefferson County, Kentucky

Jefferson County, Kentucky, had an estimated population of 795,222 in 2025 across 986 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 Kentucky's counties and nationally.

Population
795,222
2025 estimate
Area
986 km²
Density
806
per km²
Median income
$69,866
household, ACS 2024
Median age
38.4
years, ACS 2024
How Kentucky's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202490.9%
Median Gross Rent2024$1,149
Median Home Value2024$248,400
Owner-Occupied Homes202462.1%
Vacant Homes20247.8%
Demography
IndicatorValue
Aged 65 and Over202417.2%
American Indian & Alaska Native20240.1%
Asian, non-Hispanic20243.1%
Average Household Size2024people2.3
Black, non-Hispanic202420.6%
Foreign-Born202410.0%
Hispanic or Latino20248.6%
Median Age2024years38.4
Sex Ratio2024per 1,000 males1,055
Speak a Language Other Than English202412.9%
Under 18202422.3%
Veterans20246.2%
White, non-Hispanic202462.0%
Economy
IndicatorValue
Below Poverty Line202414.3%
Households on SNAP202411.0%
Income Inequality2024index0.481
Median Household Income2024$69,866
Per Capita Income2024$42,087
Unemployment Rate20245.2%
Education
IndicatorValue
Bachelor's Degree or Higher202437.0%
High School or Higher202491.3%
Health Coverage
IndicatorValue
No Health Insurance20245.7%
With a Disability202414.4%
Population & Density
IndicatorValue
Population2025795,222
Population Density2025/km²806
Work & Commute
IndicatorValue
Commute by Public Transit20241.5%
Households with No Vehicle20248.7%
Mean Commute Time2024minutes22.2
Work from Home202414.2%
Other counties of Kentucky
Compare Jefferson 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.