Routt County, Colorado ZIP Codes

9 ZIP Codes

Zip Code
City
Population ↓
80487Steamboat Springs18,525
81639Hayden2,618
80467Oak Creek2,260
80428Clark720
80483Yampa455
80469Phippsburg402
80463McCoy100
80479Toponas32
81653Slater0

Overview of ZIP Codes in Routt County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
9
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 9 ZCTAs in Routt County, Colorado (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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