County · Maryland · United States
Baltimore County ZIP codes
44 ZIP codes · 40 cities · FIPS 24005
Key facts
- State
- Maryland (MD)
- FIPS code
- 24005
- Population
- 849,586
- Median household income
- $90,904
- Median age
- 39.5
- Land area
- 598.4 sq mi (1,549.7 km²)
- Population density
- 1,420 / sq mi
- Area codes
- 301, 410, 443, 667
Cities and ZIP codes in Baltimore County (40)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.