County · Massachusetts · United States
Essex County ZIP codes
44 ZIP codes · 37 cities · FIPS 25009
Key facts
- State
- Massachusetts (MA)
- FIPS code
- 25009
- Population
- 807,258
- Median household income
- $99,431
- Median age
- 41.1
- Land area
- 492.5 sq mi (1,275.6 km²)
- Population density
- 1,639 / sq mi
- Area codes
- 339, 351, 508, 617, 781, 857, 978
Cities and ZIP codes in Essex County (37)
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.