Explore ZIP codes in Union, New Jersey. This city has 31 unique ZIP Codes. Find the ZIP code for any area in Union.
Berkeley Heights
Clark
Cranford
Elizabeth
Elizabethport
Fanwood
Garwood
Hillside
Kenilworth
Linden
Mountainside
New Providence
Plainfield
Rahway
Roselle
Roselle Park
Scotch Plains
Springfield
Summit
Union