ZIP Code 01931 is located in the county of Essex in the state of Massachusetts. 01931 ZIP Code is spread between the coordinates of +42.62 Latitude and -70.66 Longitude. 01931 ZIP Code is part of the 351 area code. There are 0 postal offices in zip code 01931.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 01931. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.