County · Pennsylvania · United States
Union County ZIP codes
13 ZIP codes · 13 cities · FIPS 42119
Key facts
- State
- Pennsylvania (PA)
- FIPS code
- 42119
- Population
- 42,570
- Median household income
- $72,894
- Median age
- 40.5
- Land area
- 316 sq mi (818.3 km²)
- Population density
- 135 / sq mi
- Area codes
- 272, 570
Cities and ZIP codes in Union County (13)
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.