Overview
- District ID
- mo-hd-125
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 125
- Land Area
- 1,643.4 sq mi
- Water Area
- 25.4 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 20 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 | 38,766 | 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
- 26,198
- Active Voters
- 23,902 (91.2%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 126 | 0.5% |
| Republican | 769 | 2.9% |
| Unaffiliated | 5,275 | 20.1% |
| Other parties | 41 | 0.2% |
| No party recorded | 19,987 | 76.3% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,242 (12.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 18,211 (69.5%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 12,658 (48.3%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 16,445 (62.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 12,541 (47.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 13,963 (53.3%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,467 (32.3%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 11,836 (45.2%) | 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
- 38,887 (± 780)
- Median Age
- 41.4
- Median Household Income
- $52,336 (± $3,154)
- High School Graduate or Higher (age 25+)
- 88.5%
- Bachelor's Degree or Higher (age 25+)
- 16.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 9,279 | 23.9% |
| 18 to 64 | 21,619 | 55.6% |
| 65 and over | 7,989 | 20.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 947 | 2.4% |
| White, not Hispanic | 35,714 | 91.8% |
| Black, not Hispanic | 533 | 1.4% |
| Asian, not Hispanic | 218 | 0.6% |
| American Indian / Alaska Native, not Hispanic | 55 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 1 | 0.0% |
| Some other race, not Hispanic | 143 | 0.4% |
| Two or more races, not Hispanic | 1,276 | 3.3% |
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
- 38,438
- Citizen Voting Age Population (CVAP)
- 29,243
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 37,689 | 98.1% |
| Hispanic | 744 | 1.9% |
| White | 36,012 | 93.7% |
| Black | 522 | 1.4% |
| Asian | 167 | 0.4% |
| American Indian / Alaska Native | 53 | 0.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 29 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 28,827 | 98.6% |
| Hispanic | 418 | 1.4% |
| White | 27,601 | 94.4% |
| Black | 495 | 1.7% |
| Asian | 103 | 0.4% |
| American Indian / Alaska Native | 620 | 2.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 18 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
