Overview
- District ID
- mo-hd-042
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 042
- Land Area
- 607.7 sq mi
- Water Area
- 10.5 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 12 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 2 | 23,630 | 60.9% | 3.1% | 53.7% |
| MO District 3 | 15,151 | 39.1% | 2.0% | 46.3% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 30,364
- Active Voters
- 27,926 (92.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 203 | 0.7% |
| Republican | 922 | 3.0% |
| Unaffiliated | 488 | 1.6% |
| Other parties | 28 | 0.1% |
| No party recorded | 28,723 | 94.6% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,430 (14.6%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 22,172 (73.0%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 14,928 (49.2%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 19,990 (65.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 15,472 (51.0%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 17,082 (56.3%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,961 (29.5%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 14,584 (48.0%) | 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
- 40,528 (± 302)
- Median Age
- 41.5
- Median Household Income
- $79,521 (± $5,470)
- High School Graduate or Higher (age 25+)
- 90.2%
- Bachelor's Degree or Higher (age 25+)
- 19.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 9,295 | 22.9% |
| 18 to 64 | 23,666 | 58.4% |
| 65 and over | 7,567 | 18.7% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,577 | 3.9% |
| White, not Hispanic | 36,402 | 89.8% |
| Black, not Hispanic | 418 | 1.0% |
| Asian, not Hispanic | 160 | 0.4% |
| American Indian / Alaska Native, not Hispanic | 49 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 17 | 0.0% |
| Some other race, not Hispanic | 31 | 0.1% |
| Two or more races, not Hispanic | 1,874 | 4.6% |
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
- 40,380
- Citizen Voting Age Population (CVAP)
- 31,087
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 38,942 | 96.4% |
| Hispanic | 1,438 | 3.6% |
| White | 36,961 | 91.5% |
| Black | 418 | 1.0% |
| Asian | 153 | 0.4% |
| American Indian / Alaska Native | 47 | 0.1% |
| Native Hawaiian / Pacific Islander | 19 | 0.0% |
| Two or More Races | 59 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 30,237 | 97.3% |
| Hispanic | 847 | 2.7% |
| White | 28,906 | 93.0% |
| Black | 453 | 1.5% |
| Asian | 188 | 0.6% |
| American Indian / Alaska Native | 641 | 2.1% |
| Native Hawaiian / Pacific Islander | 17 | 0.1% |
| Two or More Races | 35 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
