ZIP code 80428: Routt County, CO
ZIP code 80428 is in Routt County, Colorado, outside any city or Census-designated place. It is in Colorado's 2nd congressional district. Its state senate district is State Senate District 8; its state house district is State House District 26.
See it on the mapAll of Colorado
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Routt County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Steamboat Springs CCD | 98% |
| Hayden CCD | 2.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Colorado's 2nd congressional district (CO-02) | 100% |
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 26 | 100% |
Voting precincts
1 voting precinct overlap ZIP 80428. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:80428")
ZIP 80428 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.