Missouri State House District 18

State Legislative District Profile (Lower Chamber)

Overview

District ID
mo-hd-018
State
Missouri
Chamber
Lower chamber
District Code
018
Land Area
17.9 sq mi
Water Area
0.84 sq mi

Boundary

Boundary of Missouri State House District 18

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Clay County17.90 sq mi100.0%4.5%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Kansas City city13.30 sq mi74.3%4.2%
North Kansas City city4.37 sq mi24.4%100.0%
Avondale city0.14 sq mi0.8%100.0%
Oaks village0.09 sq mi0.5%99.6%

Showing all 4 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MO District 537,053100.0%4.8%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
24,504
Active Voters
20,831 (85.0%)

Party Registration

PartyVotersShare
Democratic9864.0%
Republican6292.6%
Unaffiliated12,14449.6%
Other parties630.3%
No party recorded10,68243.6%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20262,987 (12.2%)0 (0.0%)0 (0.0%)
2023–202416,011 (65.3%)0 (0.0%)0 (0.0%)
2021–202210,526 (43.0%)0 (0.0%)0 (0.0%)
2019–202014,623 (59.7%)0 (0.0%)0 (0.0%)
2017–201811,003 (44.9%)0 (0.0%)0 (0.0%)
2015–201611,464 (46.8%)0 (0.0%)0 (0.0%)
2013–20145,168 (21.1%)0 (0.0%)0 (0.0%)
2011–20129,711 (39.6%)0 (0.0%)0 (0.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 01/02/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
37,727 (± 1,571)
Median Age
35.8
Median Household Income
$65,265 (± $4,470)
High School Graduate or Higher (age 25+)
92.5%
Bachelor's Degree or Higher (age 25+)
32.4%

Population by Age

GroupPeopleShare
Under 187,34319.5%
18 to 6424,03363.7%
65 and over6,35116.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,83310.2%
White, not Hispanic24,55865.1%
Black, not Hispanic4,08910.8%
Asian, not Hispanic1,9075.1%
American Indian / Alaska Native, not Hispanic710.2%
Native Hawaiian / Pacific Islander, not Hispanic4191.1%
Some other race, not Hispanic390.1%
Two or more races, not Hispanic2,8117.5%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
35,818
Citizen Voting Age Population (CVAP)
28,740

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic33,05892.3%
Hispanic2,7617.7%
White24,63868.8%
Black3,97111.1%
Asian1,7284.8%
American Indian / Alaska Native700.2%
Native Hawaiian / Pacific Islander3931.1%
Two or More Races1320.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic26,87393.5%
Hispanic1,8676.5%
White21,33774.2%
Black3,39011.8%
Asian1,4525.1%
American Indian / Alaska Native4091.4%
Native Hawaiian / Pacific Islander2290.8%
Two or More Races1240.4%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).