ZIP code 81637: Gypsum, CO
ZIP code 81637 is in Gypsum (82% of residents) and Dotsero (12%), in Eagle County (99%) and Garfield County (0.8%), Colorado. 6.4% of its residents live outside city limits. It is in Colorado's 2nd congressional district (85%) and Colorado's 3rd congressional district (15%). Its state senate district is State Senate District 8; its state house districts are State House District 26 (87%) and State House District 57 (13%).
See it on the mapAll of Colorado
City and county
| City or town | Share of ZIP residents |
|---|---|
| Gypsum | 82% |
| Dotsero | 12% |
| County | Share of ZIP residents |
|---|---|
| Eagle County | 99% |
| Garfield County | 0.8% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Eagle-Gypsum CCD | 99% |
| Glenwood Springs CCD | 0.8% |
| Basalt CCD | 0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Colorado's 2nd congressional district (CO-02) | 85% |
| Colorado's 3rd congressional district (CO-03) | 15% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CO-02) | Joe Neguse (D) | 202-225-2161 | 85% |
| U.S. Representative (CO-03) | Jeff Hurd (R) | 202-225-4676 | 15% |
| U.S. Senator | John W. Hickenlooper (D) | 202-224-5941 · contact form | statewide |
| U.S. Senator | Michael F. Bennet (D) | 202-224-5852 · contact form | statewide |
| State Senator (State Senate District 8) | Dylan Roberts (Democratic) | 100% | |
| State Senator (State Senate District 5) | Marc Catlin (R) | <0.1% | |
| State Representative (State House District 26) | Meghan Lukens (Democratic) | 87% | |
| State Representative (State House District 57) | Elizabeth Velasco (Democratic) | 13% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Gypsum website: http://www.townofgypsum.com
- Gypsum laws: search for the Gypsum, Colorado code of ordinances
- Dotsero laws: search for the Dotsero, Colorado code of ordinances
- Eagle County website: https://www.eaglecounty.us
- Eagle County laws: search for the Eagle County, Colorado code of ordinances
- Garfield County website: http://www.garfield-county.com
- Garfield County laws: search for the Garfield County, Colorado code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 100% |
| State Senate District 5 | land only |
| State house district | Share of ZIP residents |
|---|---|
| State House District 26 | 87% |
| State House District 57 | 13% |
Voting precincts
11 voting precincts overlap ZIP 81637. 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:81637")
ZIP 81637 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.