Kalispell MT ZIP Code
Kalispell city is located in Montana State, Flathead County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Kalispell MT zip code by its streets and block numbers if we have some of the Kalispell streets loaded in our website
Kalispell Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Kalispell Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Kalispell City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Kalispell ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Kalispell, Montana.
The Kalispell Zip Code is 59901, 59903, 59904.
If you want to send a mail to Kalispell City, you should use the 59901, 59903, 59904 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Kalispell 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 59901, 59903, 59904 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Kalispell 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.