ZIP code 66018: De Soto, KS

ZIP code 66018 is in De Soto (95% of residents), in Johnson County, Kansas. It is in Kansas's 3rd congressional district. Its state senate district is State Senate District 9; its state house districts are State House District 117 (92%) and State House District 121 (7.8%).

6,419residents (2020 Census)

23.2 sq miland area

1cities and towns

1congressional district

12voting precincts

See it on the map All of Kansas

City and county

City or town	Share of ZIP residents
De Soto	95%

County	Share of ZIP residents
Johnson County	100%

Town or county subdivision	Share of ZIP residents
De Soto city	95%
Lexington township	4.5%
Olathe city	land only

Congressional district

Congressional district	Share of ZIP residents
Kansas's 3rd congressional district (KS-03)	100%

Elected officials

Office	Member	Contact	Share of residents
U.S. Representative (KS-03)	Sharice Davids (D)	202-225-2865	100%
U.S. Senator	Jerry Moran (R)	202-224-6521 · contact form	statewide
U.S. Senator	Roger Marshall (R)	202-224-4774 · contact form	statewide
State Senator (State Senate District 9)	Beverly Gossage (R)		100%
State Representative (State House District 117)	Adam Turk (R)		92%
State Representative (State House District 121)	Mike Storm (R)		7.8%

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

De Soto website: http://www.desotoks.us
De Soto laws: search for the De Soto, Kansas code of ordinances
Johnson County website: http://www.jocogov.org
Johnson County laws: search for the Johnson County, Kansas code of ordinances

State legislative districts

State senate district	Share of ZIP residents
State Senate District 9	100%

State house district	Share of ZIP residents
State House District 117	92%
State House District 121	7.8%

Voting precincts

12 voting precincts overlap ZIP 66018. 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 66018 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.