Johnstown, CO Insights: Population,
Zip Codes, Influence, and Service Areas

Johnstown is a home rule municipality in Weld and Larimer counties in the U.S. state of Colorado. The population was 17,303 at the 2020 United States Census.

Zip Codes in Johnstown, CO that we also serve: 80534





Cities Close To Johnstown, CO That We Also Serve