County · New Jersey · United States
Warren County ZIP codes
17 ZIP codes · 17 cities · FIPS 34041
Key facts
- State
- New Jersey (NJ)
- FIPS code
- 34041
- Population
- 110,238
- Median household income
- $99,596
- Median age
- 43.9
- Land area
- 356.5 sq mi (923.4 km²)
- Population density
- 309 / sq mi
- Area codes
- 862, 908, 973
Cities and ZIP codes in Warren County (17)
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.