Boundary Atlas

ZIP code 80105: Deer Trail, CO

ZIP code 80105 is in Deer Trail (60% of residents), in Arapahoe County (73%), Elbert County (26%) and Adams County (0.4%), Colorado. 40% of its residents live outside city limits. It is in Colorado's 4th congressional district. Its state senate districts are State Senate District 21 (74%) and State Senate District 35 (26%); its state house district is State House District 56.

1,771residents (2020 Census)
396.2 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Colorado

City and county

City or townShare of ZIP residents
Deer Trail60%

CountyShare of ZIP residents
Arapahoe County73%
Elbert County26%
Adams County0.4%

Town or county subdivisionShare of ZIP residents
East Arapahoe CCD73%
Elizabeth CCD23%
Agate CCD3.6%
East Adams CCD0.4%

Congressional district

Congressional districtShare of ZIP residents
Colorado's 4th congressional district (CO-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CO-04)Lauren Boebert (R)202-225-4761100%
U.S. SenatorJohn W. Hickenlooper (D)202-224-5941 · contact formstatewide
U.S. SenatorMichael F. Bennet (D)202-224-5852 · contact formstatewide
State Senator (State Senate District 21)Adrienne Benavidez (Democratic)74%
State Senator (State Senate District 35)Rod Pelton (R)26%
State Representative (State House District 56)Chris Richardson (R)100%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2174%
State Senate District 3526%

State house districtShare of ZIP residents
State House District 56100%

Voting precincts

3 voting precincts overlap ZIP 80105. Map them, with each precinct's share of the ZIP's residents.

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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:80105")

ZIP 80105 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.