Saint Ignatius MT ZIP Code
Saint Ignatius city is located in Montana State, Lake County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Saint Ignatius MT zip code by its streets and block numbers if we have some of the Saint Ignatius streets loaded in our website
Saint Ignatius Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Saint Ignatius Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Saint Ignatius City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Saint Ignatius ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Saint Ignatius, Montana.
The Saint Ignatius Zip Code is 59865.
If you want to send a mail to Saint Ignatius City, you should use the 59865 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Saint Ignatius 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 59865 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Saint Ignatius 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.