Colstrip MT ZIP Code
Colstrip city is located in Montana State, Rosebud County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Colstrip MT zip code by its streets and block numbers if we have some of the Colstrip streets loaded in our website
Colstrip Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Colstrip Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Colstrip City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Colstrip ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Colstrip, Montana.
The Colstrip Zip Code is 59323.
If you want to send a mail to Colstrip City, you should use the 59323 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Colstrip 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 59323 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Colstrip 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.