ZIP code 80234: Westminster, CO
ZIP code 80234 is in Westminster (66% of residents), Northglenn (27%) and Broomfield (6.6%), in Adams County (93%) and Broomfield County (6.6%), Colorado. It is in Colorado's 8th congressional district (93%) and Colorado's 7th congressional district (6.6%). Its state senate district is State Senate District 25; its state house districts are State House District 29 (67%), State House District 34 (27%) and State House District 33 (6.6%).
See it on the mapAll of Colorado
City and county
| City or town | Share of ZIP residents |
|---|---|
| Westminster | 66% |
| Northglenn | 27% |
| Broomfield | 6.6% |
| County | Share of ZIP residents |
|---|---|
| Adams County | 93% |
| Broomfield County | 6.6% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| West Adams CCD | 93% |
| Broomfield CCD | 6.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Colorado's 8th congressional district (CO-08) | 93% |
| Colorado's 7th congressional district (CO-07) | 6.6% |
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 |
|---|---|---|---|
| Mayor | Nancy McNally | 66% | |
| U.S. Representative (CO-08) | Gabe Evans (R) | 202-225-5625 | 93% |
| U.S. Representative (CO-07) | Brittany Pettersen (D) | 202-225-2645 | 6.6% |
| 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 25) | William Lindstedt (Democratic) | 100% | |
| State Senator (State Senate District 24) | Kyle Mullica (Democratic) | <0.1% | |
| State Representative (State House District 29) | Lori Goldstein (Democratic) | 67% | |
| State Representative (State House District 34) | Jenny Willford (Democratic) | 27% | |
| State Representative (State House District 33) | Kenny Nguyen (Democratic) | 6.6% | |
| State Representative (State House District 35) | Lorena García (Democratic) | <0.1% |
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
- Westminster website: http://www.ci.westminster.co.us/
- Westminster laws: search for the Westminster, Colorado code of ordinances
- Northglenn website: http://www.northglenn.org/
- Northglenn laws: search for the Northglenn, Colorado code of ordinances
- Broomfield website: https://www.broomfield.org/
- Broomfield laws: search for the Broomfield, Colorado code of ordinances
- Adams County laws: search for the Adams County, Colorado code of ordinances
- Broomfield County website: https://www.broomfield.org/
- Broomfield County laws: search for the Broomfield County, Colorado code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 25 | 100% |
| State Senate District 24 | land only |
| State house district | Share of ZIP residents |
|---|---|
| State House District 29 | 67% |
| State House District 34 | 27% |
| State House District 33 | 6.6% |
| State House District 35 | land only |
Voting precincts
18 voting precincts overlap ZIP 80234. 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:80234")
ZIP 80234 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.