Overview
- District ID
- mo-hd-128
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 128
- Land Area
- 803.2 sq mi
- Water Area
- 18.4 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 |
|---|
| Polk County | 635.53 sq mi | 79.1% | 100.0% |
| Hickory County | 167.72 sq mi | 20.9% | 42.1% |
Showing all 2 counties
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 | 37,207 | 100.0% | 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
- 26,755
- Active Voters
- 24,489 (91.5%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 130 | 0.5% |
| Republican | 743 | 2.8% |
| Unaffiliated | 1,355 | 5.1% |
| Other parties | 29 | 0.1% |
| No party recorded | 24,498 | 91.6% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,197 (11.9%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 19,333 (72.3%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 13,241 (49.5%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 16,959 (63.4%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 13,119 (49.0%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 14,403 (53.8%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 7,624 (28.5%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 12,282 (45.9%) | 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
- 38,141 (± 402)
- Median Age
- 40.9
- Median Household Income
- $56,110 (± $2,163)
- High School Graduate or Higher (age 25+)
- 87.8%
- Bachelor's Degree or Higher (age 25+)
- 20.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 8,362 | 21.9% |
| 18 to 64 | 21,772 | 57.1% |
| 65 and over | 8,007 | 21.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,045 | 2.7% |
| White, not Hispanic | 34,863 | 91.4% |
| Black, not Hispanic | 246 | 0.6% |
| Asian, not Hispanic | 298 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 78 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 312 | 0.8% |
| Two or more races, not Hispanic | 1,299 | 3.4% |
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
- 37,979
- Citizen Voting Age Population (CVAP)
- 29,613
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 36,991 | 97.4% |
| Hispanic | 986 | 2.6% |
| White | 35,333 | 93.0% |
| Black | 240 | 0.6% |
| Asian | 261 | 0.7% |
| American Indian / Alaska Native | 79 | 0.2% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 33 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 28,949 | 97.8% |
| Hispanic | 663 | 2.2% |
| White | 27,877 | 94.1% |
| Black | 275 | 0.9% |
| Asian | 225 | 0.8% |
| American Indian / Alaska Native | 554 | 1.9% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 28 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).