ZIP CodesZIP codes in Routt County, Colorado
Routt County, Colorado has 9 ZIP codes in this list, from 80428 to 81639. They cover 7 places, among them Steamboat Springs, Clark, Oak Creek and Phippsburg.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 80428 | Clark | 204 | 40.727, -106.921 |
| 80467 | Oak Creek | 278 | 40.257, -106.930 |
| 80469 | Phippsburg | 36.7 | 40.191, -106.974 |
| 80477 | Steamboat Springs | no area | 40.485, -106.832 |
| 80479 | Toponas | 168 | 40.060, -106.808 |
| 80483 | Yampa | 98.7 | 40.130, -106.912 |
| 80487 | Steamboat Springs | 796 | 40.633, -106.932 |
| 80488 | Steamboat Springs | no area | 40.620, -106.861 |
| 81639 | Hayden | 464 | 40.495, -107.257 |
The ZIP code areas of Routt County add up to about 2,045 square miles of land (5,296 sq km) as the Census Bureau draws them. The largest is 80487 (Steamboat Springs), with 796 square miles.
Places with more than one code here: Steamboat Springs (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Clark, CO 80428.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.