Fort Peck MT ZIP Code
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Fort Peck city is located in Montana State, Valley County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Fort Peck MT zip code by its streets and block numbers if we have some of the Fort Peck streets loaded in our website
Fort Peck Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Fort Peck Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Fort Peck City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Fort Peck ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Fort Peck, Montana.
The Fort Peck Zip Code is 59223.
If you want to send a mail to Fort Peck City, you should use the 59223 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Fort Peck 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 59223 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Fort Peck 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 Montana.