Jamestown ZIP Codes

List of Zip Codes of Jamestown

The following table lists ZIP Codes associated with Jamestown, Colorado, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude County Population Density
1 80455 40.11071 -105.39071 Boulder 378 4.5


About Jamestown Colorado Zip Codes

The city of Jamestown in Colorado (CO) is served by approximately 1 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 378 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Jamestown fall within county jurisdictions such as Boulder. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Jamestown, Colorado follow the America/Denver time zone.