ZIP code 80003: Arvada, CO
ZIP code 80003 is in Arvada (79% of residents), Westminster (17%) and Berkley (4.0%), in Jefferson County (84%) and Adams County (16%), Colorado. It is in Colorado's 7th congressional district (90%) and Colorado's 8th congressional district (10.0%). Its state senate districts are State Senate District 19 (90%), State Senate District 25 (5.9%) and State Senate District 21 (4.0%); its state house districts are State House District 24 (43%), State House District 27 (36%) and State House District 35 (21%).
See it on the mapAll of Colorado
City and county
| City or town | Share of ZIP residents |
|---|---|
| Arvada | 79% |
| Westminster | 17% |
| Berkley | 4.0% |
| County | Share of ZIP residents |
|---|---|
| Jefferson County | 84% |
| Adams County | 16% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Northeast Jefferson CCD | 84% |
| West Adams CCD | 16% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Colorado's 7th congressional district (CO-07) | 90% |
| Colorado's 8th congressional district (CO-08) | 10.0% |
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 | Lauren Simpson | 720-961-3779 | 79% |
| U.S. Representative (CO-07) | Brittany Pettersen (D) | 202-225-2645 | 90% |
| U.S. Representative (CO-08) | Gabe Evans (R) | 202-225-5625 | 10.0% |
| 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 19) | Lindsey Daugherty (Democratic) | 90% | |
| State Senator (State Senate District 25) | William Lindstedt (Democratic) | 5.9% | |
| State Senator (State Senate District 21) | Adrienne Benavidez (Democratic) | 4.0% | |
| State Representative (State House District 24) | Lisa Feret (Democratic) | 43% | |
| State Representative (State House District 27) | Brianna Titone (Democratic) | 36% | |
| State Representative (State House District 35) | Lorena García (Democratic) | 21% | |
| State Representative (State House District 29) | Lori Goldstein (Democratic) | <0.1% |
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Arvada website: http://arvada.org
- Arvada laws: search for the Arvada, Colorado code of ordinances
- Westminster website: http://www.ci.westminster.co.us/
- Westminster laws: search for the Westminster, Colorado code of ordinances
- Berkley laws: search for the Berkley, Colorado code of ordinances
- Jefferson County website: http://www.jeffco.us
- Jefferson County laws: search for the Jefferson County, Colorado code of ordinances
- Adams County laws: search for the Adams County, Colorado code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 19 | 90% |
| State Senate District 25 | 5.9% |
| State Senate District 21 | 4.0% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 24 | 43% |
| State House District 27 | 36% |
| State House District 35 | 21% |
| State House District 29 | land only |
Voting precincts
19 voting precincts overlap ZIP 80003. 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:80003")
ZIP 80003 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.