Monmouth County New Jersey is covered by a total of 61 ZIP Codes. There are 8 ZIP Codes in Monmouth County that extend into adjacent counties (Burlington County, Mercer County, Middlesex County, and Ocean County). Of the ZIP codes within or partially within Monmouth County there are 51 Standard ZIP Codes, 1 Unique ZIP Codes and 8 PO Box ZIP Codes.
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 Monmouth County and can be turned on and off. Each type of postal code can also be turned on and off.