Groton MA ZIP Code
Groton city is located in Massachusetts State, Middlesex County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Groton MA zip code by its streets and block numbers if we have some of the Groton streets loaded in our website
Groton Area Code is 978 and Time Zone is Eastern (GMT -05:00).
Groton Zip Code - Massachusetts
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Groton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Groton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Groton, Massachusetts.
The Groton Zip Code is 01450, 01470, 01471.
If you want to send a mail to Groton City, you should use the 01450, 01470, 01471 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Groton ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 01450, 01470, 01471 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Groton city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Massachusetts.