Alstead NH ZIP Code
Alstead city is located in New Hampshire State, Cheshire County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Alstead NH zip code by its streets and block numbers if we have some of the Alstead streets loaded in our website
Alstead Area Code is 603 and Time Zone is Eastern (GMT -05:00).
Alstead Zip Code - New Hampshire
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Alstead City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Alstead ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Alstead, New Hampshire.
The Alstead Zip Code is 03602.
If you want to send a mail to Alstead City, you should use the 03602 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Alstead 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 03602 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Alstead 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 New Hampshire.