Ethridge MT ZIP Code
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Ethridge city is located in Montana State, Toole County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Ethridge MT zip code by its streets and block numbers if we have some of the Ethridge streets loaded in our website
Ethridge Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Ethridge Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Ethridge City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Ethridge ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Ethridge, Montana.
The Ethridge Zip Code is 59435.
If you want to send a mail to Ethridge City, you should use the 59435 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Ethridge 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 59435 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Ethridge 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.