Baltimore County, Maryland

Baltimore County, Maryland, had an estimated population of 847,650 in 2025 across 1,550 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 Maryland's counties and nationally.

Population
847,650
2025 estimate
Area
1,550 km²
Density
547
per km²
Median income
$91,768
household, ACS 2024
Median age
39.7
years, ACS 2024
How Maryland's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202491.4%
Median Gross Rent2024$1,627
Median Home Value2024$349,300
Owner-Occupied Homes202466.4%
Vacant Homes20245.1%
Demography
IndicatorValue
Aged 65 and Over202418.1%
American Indian & Alaska Native20240.1%
Asian, non-Hispanic20246.1%
Average Household Size2024people2.5
Black, non-Hispanic202430.1%
Foreign-Born202413.2%
Hispanic or Latino20247.8%
Median Age2024years39.7
Sex Ratio2024per 1,000 males1,105
Speak a Language Other Than English202415.8%
Under 18202421.9%
Veterans20245.8%
White, non-Hispanic202451.1%
Economy
IndicatorValue
Below Poverty Line20249.8%
Households on SNAP202411.3%
Income Inequality2024index0.458
Median Household Income2024$91,768
Per Capita Income2024$49,074
Unemployment Rate20244.9%
Education
IndicatorValue
Bachelor's Degree or Higher202442.3%
High School or Higher202491.7%
Health Coverage
IndicatorValue
No Health Insurance20245.4%
With a Disability202412.1%
Population & Density
IndicatorValue
Population2025847,650
Population Density2025/km²547
Work & Commute
IndicatorValue
Commute by Public Transit20242.5%
Households with No Vehicle20247.8%
Mean Commute Time2024minutes28
Work from Home202416.5%
Compare Baltimore 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.