County · Pennsylvania · United States
Westmoreland County ZIP codes
79 ZIP codes · 79 cities · FIPS 42129
Key facts
- State
- Pennsylvania (PA)
- FIPS code
- 42129
- Population
- 353,345
- Median household income
- $72,468
- Median age
- 47.1
- Land area
- 1,027.7 sq mi (2,661.8 km²)
- Population density
- 344 / sq mi
- Area codes
- 412, 582, 724, 814, 878
Cities and ZIP codes in Westmoreland County (79)
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.