Plains MT ZIP Code
Plains city is located in Montana State, Sanders County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Plains MT zip code by its streets and block numbers if we have some of the Plains streets loaded in our website
Plains Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Plains Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Plains City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Plains ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Plains, Montana.
The Plains Zip Code is 59859.
If you want to send a mail to Plains City, you should use the 59859 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Plains 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 59859 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Plains 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.