Fremont County ZIP Codes
Colorado, United States · 11 codes
Fremont County in Colorado has 11 ZIP codes, from 81212 to 81290, serving 11 places.
ZIP codes in Fremont
Frequently asked questions
What is the ZIP code of Fremont?
Fremont has 11 ZIP codes, from 81212 to 81290. The table lists the places each one serves.
How many places are listed in Fremont County?
11 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.