Grafton ND ZIP Code
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Grafton city is located in North Dakota State, Walsh County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Grafton ND zip code by its streets and block numbers if we have some of the Grafton streets loaded in our website
Grafton Area Code is 701 and Time Zone is Central (GMT -06:00).
Grafton Zip Code - North Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Grafton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Grafton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Grafton, North Dakota.
The Grafton Zip Code is 58237.
If you want to send a mail to Grafton City, you should use the 58237 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Grafton 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 58237 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Grafton 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 North Dakota.