Rio Blanco County ZIP Codes
Colorado, United States · 2 codes
Rio Blanco County in Colorado has 2 ZIP codes, from 81641 to 81648, serving 2 places.
ZIP codes in Rio Blanco
Frequently asked questions
What is the ZIP code of Rio Blanco?
Rio Blanco has 2 ZIP codes, from 81641 to 81648. The table lists the places each one serves.
How many places are listed in Rio Blanco County?
2 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.