Hamilton CO ZIP Code
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Hamilton city is located in Colorado State, Moffat County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Hamilton CO zip code by its streets and block numbers if we have some of the Hamilton streets loaded in our website
Hamilton Area Code is 970 and Time Zone is Mountain (GMT -07:00).
Hamilton Zip Code - Colorado
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Hamilton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Hamilton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Hamilton, Colorado.
The Hamilton Zip Code is 81638.
If you want to send a mail to Hamilton City, you should use the 81638 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Hamilton 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 81638 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Hamilton 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.