ZIP Code 03231 is located in the county of Merrimack in the state of New Hampshire. 03231 ZIP Code is spread between the coordinates of +43.4637490 Latitude and -71.74930250 Longitude. 03231 ZIP Code is part of the 603 area code. There are 0 postal offices in zip code 03231.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 03231. 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.