ZIP Code 01901 is located in the county of Essex in the state of Massachusetts. 01901 ZIP Code is spread between the coordinates of +42.4633285 Latitude and -70.94530021 Longitude. 01901 ZIP Code is part of the 339, 781 area code. There is 1 postal office in zip code 01901.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 01901. 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.