Overview
- District ID
- mo-hd-045
- State
- Missouri
- Chamber
- Lower chamber
- District Code
- 045
- Land Area
- 11 sq mi
- Water Area
- 0.05 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 |
|---|
| Boone County | 10.96 sq mi | 100.0% | 1.6% |
Showing all 1 county
Places
| Place | Overlap | Share of district land | Share of place land |
|---|
| Columbia city | 10.96 sq mi | 100.0% | 16.2% |
Showing all 1 place
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 3 | 22,764 | 62.1% | 3.0% | 55.1% |
| MO District 4 | 13,893 | 37.9% | 1.8% | 44.9% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 20,415
- Active Voters
- 15,472 (75.8%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 1,813 | 8.9% |
| Republican | 824 | 4.0% |
| Unaffiliated | 8,069 | 39.5% |
| Other parties | 61 | 0.3% |
| No party recorded | 9,648 | 47.3% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,340 (21.3%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 11,966 (58.6%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 7,068 (34.6%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 9,545 (46.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 6,793 (33.3%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 6,674 (32.7%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 3,544 (17.4%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 5,215 (25.5%) | 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
- 37,841 (± 1,392)
- Median Age
- 22.4
- Median Household Income
- $35,934 (± $3,241)
- High School Graduate or Higher (age 25+)
- 94.9%
- Bachelor's Degree or Higher (age 25+)
- 52.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 3,606 | 9.5% |
| 18 to 64 | 31,365 | 82.9% |
| 65 and over | 2,870 | 7.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,534 | 4.1% |
| White, not Hispanic | 27,710 | 73.2% |
| Black, not Hispanic | 4,226 | 11.2% |
| Asian, not Hispanic | 2,119 | 5.6% |
| American Indian / Alaska Native, not Hispanic | 2 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 58 | 0.2% |
| Some other race, not Hispanic | 53 | 0.1% |
| Two or more races, not Hispanic | 2,139 | 5.7% |
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
- 35,870
- Citizen Voting Age Population (CVAP)
- 32,510
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 34,459 | 96.1% |
| Hispanic | 1,414 | 3.9% |
| White | 27,524 | 76.7% |
| Black | 3,981 | 11.1% |
| Asian | 809 | 2.3% |
| American Indian / Alaska Native | 0 | 0.0% |
| Native Hawaiian / Pacific Islander | 60 | 0.2% |
| Two or More Races | 192 | 0.5% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 31,297 | 96.3% |
| Hispanic | 1,206 | 3.7% |
| White | 25,965 | 79.9% |
| Black | 3,376 | 10.4% |
| Asian | 1,312 | 4.0% |
| American Indian / Alaska Native | 454 | 1.4% |
| Native Hawaiian / Pacific Islander | 60 | 0.2% |
| Two or More Races | 190 | 0.6% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
