Union County New Jersey ZIP Codes - Map and Full List

Union County New Jersey is covered by a total of 31 ZIP Codes. There are 4 ZIP Codes in Union County that extend into adjacent counties (Essex County, Morris County, and Somerset County). Of the ZIP codes within or partially within Union County there are 27 Standard ZIP Codes and 4 PO Box ZIP Codes.

Map List Related

Union County New Jersey ZIP Code Map

Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Union County and can be turned on and off. Each type of postal code can also be turned on and off.

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