Overview
- District ID
- mo-hd-051
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 051
- Land Area
- 1,145.2 sq mi
- Water Area
- 16 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 21 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 | 38,562 | 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
- 24,128
- Active Voters
- 22,871 (94.8%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 203 | 0.8% |
| Republican | 641 | 2.7% |
| Unaffiliated | 429 | 1.8% |
| Other parties | 17 | 0.1% |
| No party recorded | 22,838 | 94.7% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 2,581 (10.7%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 17,224 (71.4%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 11,908 (49.4%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 15,828 (65.6%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 12,460 (51.6%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 13,654 (56.6%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,648 (35.8%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 11,794 (48.9%) | 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
- 38,745 (± 944)
- Median Age
- 37.3
- Median Household Income
- $68,014 (± $6,533)
- High School Graduate or Higher (age 25+)
- 89.0%
- Bachelor's Degree or Higher (age 25+)
- 24.8%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,539 | 22.0% |
| 18 to 64 | 23,153 | 59.8% |
| 65 and over | 7,053 | 18.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,341 | 8.6% |
| White, not Hispanic | 30,943 | 79.9% |
| Black, not Hispanic | 1,544 | 4.0% |
| Asian, not Hispanic | 265 | 0.7% |
| American Indian / Alaska Native, not Hispanic | 32 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 321 | 0.8% |
| Some other race, not Hispanic | 282 | 0.7% |
| Two or more races, not Hispanic | 2,017 | 5.2% |
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
- 37,718
- Citizen Voting Age Population (CVAP)
- 29,358
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 35,046 | 92.9% |
| Hispanic | 2,678 | 7.1% |
| White | 31,250 | 82.9% |
| Black | 1,606 | 4.3% |
| Asian | 204 | 0.5% |
| American Indian / Alaska Native | 30 | 0.1% |
| Native Hawaiian / Pacific Islander | 197 | 0.5% |
| Two or More Races | 191 | 0.5% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 27,648 | 94.2% |
| Hispanic | 1,705 | 5.8% |
| White | 25,033 | 85.3% |
| Black | 1,950 | 6.6% |
| Asian | 211 | 0.7% |
| American Indian / Alaska Native | 234 | 0.8% |
| Native Hawaiian / Pacific Islander | 127 | 0.4% |
| Two or More Races | 102 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
