Boundary Atlas

ZIP code 80640: Commerce City, CO

ZIP code 80640 is in Commerce City (76% of residents), Derby (9.9%) and Brighton (3.7%), in Adams County, Colorado. 10% of its residents live outside city limits. It is in Colorado's 8th congressional district. Its state senate districts are State Senate District 21 (90%), State Senate District 13 (6.6%) and State Senate District 24 (3.4%); its state house districts are State House District 32 (92%), State House District 48 (7.0%) and State House District 31 (0.7%).

13,106residents (2020 Census)
13.0 sq miland area
3cities and towns
1congressional district
14voting precincts

See it on the mapAll of Colorado

City and county

City or townShare of ZIP residents
Commerce City76%
Derby9.9%
Brighton3.7%

CountyShare of ZIP residents
Adams County100%

Town or county subdivisionShare of ZIP residents
Brighton CCD86%
Commerce City CCD14%
West Adams CCD0.2%

Congressional district

Congressional districtShare of ZIP residents
Colorado's 8th congressional district (CO-08)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2190%
State Senate District 136.6%
State Senate District 243.4%

State house districtShare of ZIP residents
State House District 3292%
State House District 487.0%
State House District 310.7%

Voting precincts

14 voting precincts overlap ZIP 80640. 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:80640")

ZIP 80640 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.