Overview
- District ID
- mo-hd-055
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 055
- Land Area
- 237.1 sq mi
- Water Area
- 3.03 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Cass County | 237.12 sq mi | 100.0% | 34.0% |
Showing all 1 county
Places
Showing all 10 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| MO District 4 | 38,844 | 100.0% | 5.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 29,414
- Active Voters
- 27,366 (93.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 350 | 1.2% |
| Republican | 1,246 | 4.2% |
| Unaffiliated | 7,142 | 24.3% |
| Other parties | 40 | 0.1% |
| No party recorded | 20,636 | 70.2% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 2,164 (7.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 21,951 (74.6%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 15,235 (51.8%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 19,939 (67.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 15,144 (51.5%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 16,756 (57.0%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,754 (29.8%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 14,753 (50.2%) | 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
- 39,284 (± 1,097)
- Median Age
- 41.1
- Median Household Income
- $96,497 (± $5,777)
- High School Graduate or Higher (age 25+)
- 94.1%
- Bachelor's Degree or Higher (age 25+)
- 30.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,870 | 22.6% |
| 18 to 64 | 23,137 | 58.9% |
| 65 and over | 7,277 | 18.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,353 | 3.4% |
| White, not Hispanic | 35,455 | 90.3% |
| Black, not Hispanic | 574 | 1.5% |
| Asian, not Hispanic | 118 | 0.3% |
| American Indian / Alaska Native, not Hispanic | 77 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 52 | 0.1% |
| Some other race, not Hispanic | 214 | 0.5% |
| Two or more races, not Hispanic | 1,441 | 3.7% |
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
- 39,047
- Citizen Voting Age Population (CVAP)
- 30,179
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 37,801 | 96.8% |
| Hispanic | 1,244 | 3.2% |
| White | 35,950 | 92.1% |
| Black | 567 | 1.5% |
| Asian | 105 | 0.3% |
| American Indian / Alaska Native | 74 | 0.2% |
| Native Hawaiian / Pacific Islander | 49 | 0.1% |
| Two or More Races | 91 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 29,282 | 97.0% |
| Hispanic | 896 | 3.0% |
| White | 27,979 | 92.7% |
| Black | 668 | 2.2% |
| Asian | 190 | 0.6% |
| American Indian / Alaska Native | 405 | 1.3% |
| Native Hawaiian / Pacific Islander | 10 | 0.0% |
| Two or More Races | 58 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
