Morris County New Jersey is covered by a total of 67 ZIP Codes. There are 14 ZIP Codes in Morris County that extend into adjacent counties (Hunterdon County, Passaic County, Somerset County, Sussex County, Union County, and Warren County). Of the ZIP codes within or partially within Morris County there are 57 Standard ZIP Codes and 10 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 Morris County and can be turned on and off. Each type of postal code can also be turned on and off.