Sidney MT ZIP Code
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Sidney city is located in Montana State, Richland County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Sidney MT zip code by its streets and block numbers if we have some of the Sidney streets loaded in our website
Sidney Area Code is 406 and Time Zone is Mountain (GMT -07:00).
Sidney Zip Code - Montana
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sidney City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sidney ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sidney, Montana.
The Sidney Zip Code is 59270.
If you want to send a mail to Sidney City, you should use the 59270 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Sidney 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 59270 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sidney 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.