Overview
- District ID
- mo-sd-015
- State
- Missouri
- Chamber
- Upper chamber (state senate)
- District Code
- 015
- Land Area
- 158.4 sq mi
- Water Area
- 3.08 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. Louis County | 158.06 sq mi | 99.8% | 31.1% |
Showing all 1 county
Places
Showing all 11 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 | 186,330 | 100.0% | 24.2% | 100.0% |
| MO District 1 | 0 | 0.0% | 0.0% | <0.1% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 144,843
- Active Voters
- 134,128 (92.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 2,788 | 1.9% |
| Republican | 3,387 | 2.3% |
| Unaffiliated | 3,454 | 2.4% |
| Other parties | 118 | 0.1% |
| No party recorded | 135,096 | 93.3% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 20,987 (14.5%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 112,349 (77.6%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 84,541 (58.4%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 106,599 (73.6%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 86,862 (60.0%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 90,331 (62.4%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 51,994 (35.9%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 80,008 (55.2%) | 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
- 183,426 (± 1,259)
- Median Age
- 44.8
- Median Household Income
- $131,435 (± $3,412)
- High School Graduate or Higher (age 25+)
- 97.8%
- Bachelor's Degree or Higher (age 25+)
- 68.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 40,441 | 22.0% |
| 18 to 64 | 102,357 | 55.8% |
| 65 and over | 40,628 | 22.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 8,111 | 4.4% |
| White, not Hispanic | 140,737 | 76.7% |
| Black, not Hispanic | 4,712 | 2.6% |
| Asian, not Hispanic | 18,098 | 9.9% |
| American Indian / Alaska Native, not Hispanic | 104 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 6 | 0.0% |
| Some other race, not Hispanic | 1,065 | 0.6% |
| Two or more races, not Hispanic | 10,593 | 5.8% |
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
- 175,140
- Citizen Voting Age Population (CVAP)
- 135,722
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 167,802 | 95.8% |
| Hispanic | 7,340 | 4.2% |
| White | 145,444 | 83.0% |
| Black | 4,643 | 2.7% |
| Asian | 12,960 | 7.4% |
| American Indian / Alaska Native | 103 | 0.1% |
| Native Hawaiian / Pacific Islander | 8 | 0.0% |
| Two or More Races | 325 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 131,514 | 96.9% |
| Hispanic | 4,209 | 3.1% |
| White | 116,525 | 85.9% |
| Black | 4,231 | 3.1% |
| Asian | 9,968 | 7.3% |
| American Indian / Alaska Native | 607 | 0.4% |
| Native Hawaiian / Pacific Islander | 4 | 0.0% |
| Two or More Races | 192 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
