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County ProfileMD

Baltimore County

Population: 585,7080

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
585,708
People
Median age
36.2
Housing
Total households
255,668
Income
Median household income
$62,177
Housing
Total housing units
295,032
Employment
Employment rate
58.9%
Education
Bachelor’s degree or higher
36.1%
Healthcare
Insured population
94.1%
County details
Local time 02:54:08(ET)
NameBaltimore
Total ZIP codes0total
ZIP codes (by type)
Area code410, 443, 667
TimezoneEastern Time (ET)
Coordinates39.3000324, -76.6104761
Land area80.9 sq miles(209.6 km²)

Map of Baltimore county, Maryland with ZIP codes

Map of Baltimore County, Maryland and ZIP codes

Cities and Communities in Baltimore County

Compare the largest cities in Baltimore County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Baltimore County

Review the most populated postal areas across Baltimore County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS