Overview
- District ID
- mo-hd-107
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 107
- Land Area
- 11.9 sq mi
- Water Area
- 0 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 |
|---|
| St. Charles County | 11.91 sq mi | 100.0% | 2.1% |
Showing all 1 county
Places
Showing all 2 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 | 32,010 | 86.9% | 4.2% | 91.0% |
| MO District 3 | 4,840 | 13.1% | 0.6% | 9.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 26,706
- Active Voters
- 25,298 (94.7%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 534 | 2.0% |
| Republican | 848 | 3.2% |
| Unaffiliated | 659 | 2.5% |
| Other parties | 25 | 0.1% |
| No party recorded | 24,640 | 92.3% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,766 (14.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 20,964 (78.5%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 13,981 (52.4%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 19,061 (71.4%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 14,945 (56.0%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 16,224 (60.8%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,192 (30.7%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 13,943 (52.2%) | 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
- 37,465 (± 1,627)
- Median Age
- 38.9
- Median Household Income
- $128,703 (± $4,565)
- High School Graduate or Higher (age 25+)
- 96.3%
- Bachelor's Degree or Higher (age 25+)
- 53.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 9,150 | 24.4% |
| 18 to 64 | 23,154 | 61.8% |
| 65 and over | 5,161 | 13.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,074 | 2.9% |
| White, not Hispanic | 31,117 | 83.1% |
| Black, not Hispanic | 1,226 | 3.3% |
| Asian, not Hispanic | 2,591 | 6.9% |
| American Indian / Alaska Native, not Hispanic | 36 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 189 | 0.5% |
| Two or more races, not Hispanic | 1,232 | 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
- 35,844
- Citizen Voting Age Population (CVAP)
- 26,846
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 34,920 | 97.4% |
| Hispanic | 922 | 2.6% |
| White | 31,150 | 86.9% |
| Black | 1,348 | 3.8% |
| Asian | 1,308 | 3.6% |
| American Indian / Alaska Native | 35 | 0.1% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 161 | 0.4% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 26,177 | 97.5% |
| Hispanic | 671 | 2.5% |
| White | 23,711 | 88.3% |
| Black | 1,263 | 4.7% |
| Asian | 1,006 | 3.7% |
| American Indian / Alaska Native | 80 | 0.3% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 116 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
