Overview
- District ID
- ks-hd-121
- State
- Kansas
- Chamber
- Lower chamber
- District Code
- 121
- Land Area
- 66.8 sq mi
- Water Area
- 0.76 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 |
|---|
| Johnson County | 66.78 sq mi | 100.0% | 14.1% |
Showing all 1 county
Places
Showing all 3 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 |
|---|
| KS District 3 | 23,004 | 100.0% | 3.1% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 17,091
- Active Voters
- 16,340 (95.6%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 4,780 | 28.0% |
| Republican | 7,430 | 43.5% |
| Unaffiliated | 4,591 | 26.9% |
| Other parties | 290 | 1.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 13,125 (76.8%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 9,422 (55.1%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 11,866 (69.4%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 8,465 (49.5%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 9,009 (52.7%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 5,422 (31.7%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 6,906 (40.4%) | 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 11/03/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 22,458 (± 1,226)
- Median Age
- 37.6
- Median Household Income
- $140,075 (± $8,030)
- High School Graduate or Higher (age 25+)
- 94.8%
- Bachelor's Degree or Higher (age 25+)
- 46.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 6,463 | 28.8% |
| 18 to 64 | 13,432 | 59.8% |
| 65 and over | 2,563 | 11.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,957 | 8.7% |
| White, not Hispanic | 16,075 | 71.6% |
| Black, not Hispanic | 1,974 | 8.8% |
| Asian, not Hispanic | 753 | 3.4% |
| American Indian / Alaska Native, not Hispanic | 44 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 159 | 0.7% |
| Two or more races, not Hispanic | 1,496 | 6.7% |
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
- 21,709
- Citizen Voting Age Population (CVAP)
- 15,346
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 20,141 | 92.8% |
| Hispanic | 1,573 | 7.2% |
| White | 16,245 | 74.8% |
| Black | 2,020 | 9.3% |
| Asian | 636 | 2.9% |
| American Indian / Alaska Native | 42 | 0.2% |
| Native Hawaiian / Pacific Islander | 4 | 0.0% |
| Two or More Races | 165 | 0.8% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 14,412 | 93.9% |
| Hispanic | 930 | 6.1% |
| White | 11,963 | 78.0% |
| Black | 1,637 | 10.7% |
| Asian | 602 | 3.9% |
| American Indian / Alaska Native | 193 | 1.3% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 115 | 0.7% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
