Hampshire County Massachusetts is covered by a total of 33 ZIP Codes. There are 10 ZIP Codes in Hampshire County that extend into adjacent counties (Berkshire County, Franklin County, Hampden County, and Worcester County). Of the ZIP codes within or partially within Hampshire County there are 27 Standard ZIP Codes, 1 Unique ZIP Codes and 5 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 Hampshire County and can be turned on and off. Each type of postal code can also be turned on and off.