Union County, New Jersey ZIP Codes

26 ZIP Codes

Zip Code
City
Population
07083Union58,170
07060Plainfield48,363
07036Linden45,671
07202Elizabeth44,968
07208Elizabeth31,937
07206Elizabethport31,930
07090Westfield31,111
07065Rahway30,109
07201Elizabeth28,467
07076Scotch Plains24,843
07901Summit24,314
07016Cranford24,074
07203Roselle22,646
07205Hillside22,349
07081Springfield17,171
07066Clark15,622
07062Plainfield15,399
07063Plainfield14,235
07204Roselle Park14,093
07974New Providence13,349
07922Berkeley Heights12,195
07033Kenilworth8,401
07023Fanwood7,799
07092Mountainside7,049
07027Garwood4,885
07088Vauxhall2,901

Overview of ZIP Codes in Union County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
26
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 26 ZCTAs in Union County, New Jersey (US Census).