Overview
- District ID
- sd-hd-28a
- State
- South Dakota
- Chamber
- Lower chamber
- District Code
- 28A
- Land Area
- 8,674.1 sq mi
- Water Area
- 221.2 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 counties
Places
Showing all 21 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 |
|---|
| SD At-Large | 12,687 | 100.0% | 1.4% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 8,121
- Active Voters
- 7,618 (93.8%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 3,438 | 42.3% |
| Republican | 2,673 | 32.9% |
| Unaffiliated | 1,045 | 12.9% |
| Other parties | <10 | — |
| No party recorded | <10 | — |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 4,262 (52.5%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 3,432 (42.3%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 4,190 (51.6%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 3,547 (43.7%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 3,324 (40.9%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 2,634 (32.4%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 3,046 (37.5%) | 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 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 12,655 (± 181)
- Median Age
- 30.5
- Median Household Income
- $56,947 (± $4,568)
- High School Graduate or Higher (age 25+)
- 88.3%
- Bachelor's Degree or Higher (age 25+)
- 18.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 4,275 | 33.8% |
| 18 to 64 | 6,789 | 53.6% |
| 65 and over | 1,591 | 12.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 109 | 0.9% |
| White, not Hispanic | 4,029 | 31.8% |
| Black, not Hispanic | 27 | 0.2% |
| Asian, not Hispanic | 23 | 0.2% |
| American Indian / Alaska Native, not Hispanic | 8,019 | 63.4% |
| Native Hawaiian / Pacific Islander, not Hispanic | 7 | 0.1% |
| Some other race, not Hispanic | 4 | 0.0% |
| Two or more races, not Hispanic | 437 | 3.5% |
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
- 12,613
- Citizen Voting Age Population (CVAP)
- 8,349
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 12,518 | 99.2% |
| Hispanic | 99 | 0.8% |
| White | 4,058 | 32.2% |
| Black | 20 | 0.2% |
| Asian | 12 | 0.1% |
| American Indian / Alaska Native | 8,015 | 63.5% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 8 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 8,274 | 99.1% |
| Hispanic | 79 | 0.9% |
| White | 3,073 | 36.8% |
| Black | 91 | 1.1% |
| Asian | 10 | 0.1% |
| American Indian / Alaska Native | 5,105 | 61.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 4 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
