East Helena MT ZIP Code
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East Helena city is located in Montana State, Lewis And Clark County and has a unique zip code assigned by the US Postal Service Office.
You can search for the East Helena MT zip code by its streets and block numbers if we have some of the East Helena streets loaded in our website
East Helena Area Code is 406 and Time Zone is Mountain (GMT -07:00).
East Helena Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the East Helena City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the East Helena ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in East Helena, Montana.
The East Helena Zip Code is 59635.
If you want to send a mail to East Helena City, you should use the 59635 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded East Helena 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 59635 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a East Helena 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.