Lewistown MT ZIP Code
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Lewistown city is located in Montana State, Fergus County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Lewistown MT zip code by its streets and block numbers if we have some of the Lewistown streets loaded in our website
Lewistown Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Lewistown Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Lewistown City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Lewistown ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Lewistown, Montana.
The Lewistown Zip Code is 59457.
If you want to send a mail to Lewistown City, you should use the 59457 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Lewistown 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 59457 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Lewistown 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.