Keenesburg CO ZIP Code
Keenesburg city is located in Colorado State, Weld County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Keenesburg CO zip code by its streets and block numbers if we have some of the Keenesburg streets loaded in our website
Keenesburg Area Code is 303/720 and Time Zone is Mountain (GMT -07:00).
Keenesburg Zip Code - Colorado
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Keenesburg City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Keenesburg ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Keenesburg, Colorado.
The Keenesburg Zip Code is 80643.
If you want to send a mail to Keenesburg City, you should use the 80643 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Keenesburg 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 80643 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Keenesburg 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.