Boundary Atlas

ZIP code 80124: Lone Tree, CO

ZIP code 80124 is in Lone Tree (63% of residents), Acres Green (13%) and Highlands Ranch (12%), in Douglas County, Colorado. 12% of its residents live outside city limits. It is in Colorado's 4th congressional district. Its state senate district is State Senate District 30; its state house districts are State House District 39 (90%) and State House District 43 (10%).

22,541residents (2020 Census)
9.4 sq miland area
3cities and towns
1congressional district
15voting precincts

See it on the mapAll of Colorado

City and county

City or townShare of ZIP residents
Lone Tree63%
Acres Green13%
Highlands Ranch12%

CountyShare of ZIP residents
Douglas County100%

Town or county subdivisionShare of ZIP residents
Sedalia CCD100%

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 30)John Carson (R)100%
State Representative (State House District 39)Brandi Bradley (R)90%
State Representative (State House District 43)Bob Marshall (Democratic)10%

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 30100%

State house districtShare of ZIP residents
State House District 3990%
State House District 4310%

Voting precincts

15 voting precincts overlap ZIP 80124. 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:

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ZIP 80124 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.