ZIP code 80521: Fort Collins, CO
ZIP code 80521 is in Fort Collins (91% of residents), in Larimer County, Colorado. 9.0% of its residents live outside city limits. It is in Colorado's 2nd congressional district. Its state senate districts are State Senate District 14 (99%) and State Senate District 15 (0.9%); its state house districts are State House District 53 (95%) and State House District 65 (5.0%).
See it on the mapAll of Colorado
City and county
| City or town | Share of ZIP residents |
|---|---|
| Fort Collins | 91% |
| County | Share of ZIP residents |
|---|---|
| Larimer County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Fort Collins CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Colorado's 2nd congressional district (CO-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Jeni Arndt | 91% | |
| U.S. Representative (CO-02) | Joe Neguse (D) | 202-225-2161 | 100% |
| 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 14) | Cathy Kipp (Democratic) | 99% | |
| State Senator (State Senate District 15) | Janice Marchman (Democratic) | 0.9% | |
| State Representative (State House District 53) | Andy Boesenecker (Democratic) | 95% | |
| State Representative (State House District 65) | Lori Garcia Sander (R) | 5.0% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Fort Collins website: https://www.fcgov.com/
- Fort Collins laws: search for the Fort Collins, Colorado code of ordinances
- Larimer County website: http://www.co.larimer.co.us
- Larimer County laws: search for the Larimer County, Colorado code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 14 | 99% |
| State Senate District 15 | 0.9% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 53 | 95% |
| State House District 65 | 5.0% |
Voting precincts
14 voting precincts overlap ZIP 80521. 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:80521")
ZIP 80521 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.