There are 9 zip codes in Fremont County, Colorado. The most populated is 81212, located in Canon City. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
8121232,146Canon City
812268,221Florence
812404,386Penrose
812232,023Cotopaxi
812331,019Howard
81244553Rockvale
81221452Coal Creek
81222379Coaldale
8123232Hillside

Zip Codes in Fremont County, Colorado by Population (2024)