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County ProfileMD

Baltimore County

Population: 854,535 · 86 ZIP codes

Demographics

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

People
Total population
854,535
People
Median age
39.7
Housing
Total households
332,801
Income
Median household income
$91,768
Housing
Total housing units
350,821
Employment
Employment rate
62.4%
Education
Bachelor’s degree or higher
42.3%
Healthcare
Insured population
94.6%
County details
Local time 02:48:58(ET)
NameBaltimore
Total ZIP codes86total
ZIP codes (by type)
58 Standard13 PO Box15 Unique
Area code410, 443, 667
TimezoneEastern Time (ET)
Coordinates39.4431666, -76.6165693
Land area598.4 sq miles(1,549.7 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
Baltimore585,708$62,17740ZIPs
Dundalk67,796$64,5201ZIPs
Towson59,553$101,3205ZIPs
Gwynn Oak46,595—1ZIPs
Catonsville44,701$114,1091ZIPs
Nottingham40,555—1ZIPs
Essex40,505$67,1681ZIPs
Lutherville Timonium38,677—2ZIPs
Windsor Mill38,015—1ZIPs
Halethorpe35,837—1ZIPs
Owings Mills35,674$96,2431ZIPs
Pikesville34,168$98,4652ZIPs
Randallstown33,655$85,7351ZIPs
Middle River33,203$78,3981ZIPs
Parkville31,812$79,1781ZIPs
Perry Hall29,409$106,2441ZIPs
Reisterstown26,822$85,5431ZIPs
Cockeysville24,184$77,6801ZIPs
Rosedale19,961$85,7111ZIPs
White Marsh10,287$117,4261ZIPs
Sparrows Point9,594—1ZIPs
Phoenix7,468—1ZIPs
Curtis Bay7,368—1ZIPs
Parkton7,178—1ZIPs
Sparks Glencoe6,045—1ZIPs
Monkton5,062—1ZIPs
Baldwin4,861—1ZIPs
Kingsville4,358$128,5631ZIPs
Glen Arm4,060—1ZIPs
Freeland3,199—1ZIPs
Upperco2,553—1ZIPs
Stevenson865—1ZIPs
Hydes815—1ZIPs
Glyndon619—1ZIPs
Fort Howard430—1ZIPs
Upper Falls259—1ZIPs
Fork256—1ZIPs
Butler89—1ZIPs
Maryland Line56—1ZIPs
Hunt Valley11—2ZIPs

— 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)
21234Parkville$83,51767,308
21117Owings Mills$101,83159,154
21222Dundalk$64,14159,062
21224Baltimore$89,01754,266
21215Baltimore$51,58754,198
21228Catonsville$112,65650,418
21206Baltimore$64,53149,470
21207Gwynn Oak$67,06046,595
21218Baltimore$62,48846,238
21220Middle River$81,81744,568
21229Baltimore$60,04743,464
21221Essex$67,34043,381
21236Nottingham$95,14940,555
21093Lutherville Timonium$125,52838,677
21244Windsor Mill$85,11438,015
21230Baltimore$91,84236,660
21227Halethorpe$85,98635,837
21208Pikesville$90,13135,007
21136Reisterstown$118,50034,973
21212Baltimore$96,68532,317

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