Union County, New Jersey
26 ZIP codes · 102.77 sq mi of land · FIPS 34039
| Population | 579,290 |
|---|---|
| State | New Jersey |
| FIPS code | 34039 |
| Time zone | Eastern |
| Land area | 102.77 sq mi |
| Center (lat, long) | 40.6599, -74.3087 |
Area codes in this area
These are the area codes that most often serve Union County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Elizabeth · 137,302Plainfield · 55,236Linden · 44,192Westfield · 31,111Rahway · 30,109Summit · 22,705Roselle · 22,646Roselle Park · 14,093CranfordFanwoodGarwoodKenilworthClarkScotch PlainsSpringfieldUnionVauxhallMountainsideHillsideElizabethportBerkeley HeightsNew Providence
ZIP codes in Union County
07016 Cranford07023 Fanwood07027 Garwood07033 Kenilworth07036 Linden07060 Plainfield07062 Plainfield07063 Plainfield07065 Rahway07066 Clark07076 Scotch Plains07081 Springfield07083 Union07088 Vauxhall07090 Westfield07092 Mountainside07201 Elizabeth07202 Elizabeth07203 Roselle07204 Roselle Park07205 Hillside07206 Elizabethport07208 Elizabeth07901 Summit07922 Berkeley Heights07974 New Providence
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.