Jamestown CO ZIP Code
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Jamestown city is located in Colorado State, Boulder County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Jamestown CO zip code by its streets and block numbers if we have some of the Jamestown streets loaded in our website
Jamestown Area Code is 720 and Time Zone is Mountain (GMT -07:00).
Jamestown Zip Code - Colorado
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Jamestown City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Jamestown ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Jamestown, Colorado.
The Jamestown Zip Code is 80455.
If you want to send a mail to Jamestown City, you should use the 80455 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Jamestown 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 80455 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Jamestown 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.