Helena MT ZIP Code
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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 Helena MT zip code by its streets and block numbers if we have some of the Helena streets loaded in our website
Helena Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Helena Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Helena City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Helena ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Helena, Montana.
The Helena Zip Code is 59601, 59602, 59604, 59620, 59623, 59624, 59625, 59626.
If you want to send a mail to Helena City, you should use the 59601, 59602, 59604, 59620, 59623, 59624, 59625, 59626 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded 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 59601, 59602, 59604, 59620, 59623, 59624, 59625, 59626 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a 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.