County · Pennsylvania · United States
Mercer County ZIP codes
20 ZIP codes · 20 cities · FIPS 42085
Key facts
- State
- Pennsylvania (PA)
- FIPS code
- 42085
- Population
- 109,852
- Median household income
- $60,614
- Median age
- 45.2
- Land area
- 672.5 sq mi (1,741.8 km²)
- Population density
- 163 / sq mi
- Area codes
- 570, 724, 814, 878
Cities and ZIP codes in Mercer County (20)
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.