Franklin County Massachusetts is covered by a total of 35 ZIP Codes. There are 8 ZIP Codes in Franklin County that extend into adjacent counties (Berkshire County, Cheshire County, Hampshire County, and Worcester County). Of the ZIP codes within or partially within Franklin County there are 31 Standard ZIP Codes and 4 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 Franklin County and can be turned on and off. Each type of postal code can also be turned on and off.