Amherst CO ZIP Code
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Amherst city is located in Colorado State, Phillips County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Amherst CO zip code by its streets and block numbers if we have some of the Amherst streets loaded in our website
Amherst Area Code is 970 and Time Zone is Mountain (GMT -07:00).
Amherst Zip Code - Colorado
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Amherst City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Amherst ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Amherst, Colorado.
The Amherst Zip Code is 80721.
If you want to send a mail to Amherst City, you should use the 80721 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Amherst 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 80721 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Amherst 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 Colorado.