County · Pennsylvania · United States
Washington County ZIP codes
55 ZIP codes · 55 cities · FIPS 42125
Key facts
- State
- Pennsylvania (PA)
- FIPS code
- 42125
- Population
- 209,778
- Median household income
- $77,487
- Median age
- 44.2
- Land area
- 857 sq mi (2,219.6 km²)
- Population density
- 245 / sq mi
- Area codes
- 412, 484, 582, 610, 724, 814, 878
Cities and ZIP codes in Washington County (55)
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.