Overview
- District ID
- sd-sd-031
- State
- South Dakota
- Chamber
- Upper chamber (state senate)
- District Code
- 031
- Land Area
- 800.1 sq mi
- Water Area
- 0.26 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 |
|---|
| Lawrence County | 800.05 sq mi | 100.0% | 100.0% |
Showing all 1 county
Places
Showing all 10 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 | 25,768 | 100.0% | 2.9% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 24,339
- Active Voters
- 22,384 (92.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 4,210 | 17.3% |
| Republican | 13,106 | 53.8% |
| Unaffiliated | 3,125 | 12.8% |
| Other parties | 3,898 | 16.0% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 15,458 (63.5%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 11,988 (49.3%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 13,088 (53.8%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 9,952 (40.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 10,221 (42.0%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 7,243 (29.8%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 8,724 (35.8%) | 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
- 27,233
- Median Age
- 44.8
- Median Household Income
- $73,384 (± $4,448)
- High School Graduate or Higher (age 25+)
- 95.4%
- Bachelor's Degree or Higher (age 25+)
- 32.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 4,435 | 16.3% |
| 18 to 64 | 15,985 | 58.7% |
| 65 and over | 6,813 | 25.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,057 | 3.9% |
| White, not Hispanic | 24,182 | 88.8% |
| Black, not Hispanic | 69 | 0.3% |
| Asian, not Hispanic | 122 | 0.4% |
| American Indian / Alaska Native, not Hispanic | 675 | 2.5% |
| Native Hawaiian / Pacific Islander, not Hispanic | 22 | 0.1% |
| Some other race, not Hispanic | 66 | 0.2% |
| Two or more races, not Hispanic | 1,040 | 3.8% |
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
- 27,055
- Citizen Voting Age Population (CVAP)
- 22,631
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 26,128 | 96.6% |
| Hispanic | 923 | 3.4% |
| White | 24,464 | 90.4% |
| Black | 64 | 0.2% |
| Asian | 92 | 0.3% |
| American Indian / Alaska Native | 673 | 2.5% |
| Native Hawaiian / Pacific Islander | 22 | 0.1% |
| Two or More Races | 46 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 21,964 | 97.1% |
| Hispanic | 662 | 2.9% |
| White | 20,609 | 91.1% |
| Black | 127 | 0.6% |
| Asian | 439 | 1.9% |
| American Indian / Alaska Native | 746 | 3.3% |
| Native Hawaiian / Pacific Islander | 21 | 0.1% |
| Two or More Races | 47 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
