South Dakota State House District 8

State Legislative District Profile (Lower Chamber)

Overview

District ID
sd-hd-008
State
South Dakota
Chamber
Lower chamber
District Code
008
Land Area
2,542.8 sq mi
Water Area
56 sq mi

Boundary

Boundary of South Dakota State House District 8

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Kingsbury County832.24 sq mi32.7%100.0%
Brookings County684.81 sq mi26.9%86.4%
Lake County562.89 sq mi22.1%100.0%
Miner County462.90 sq mi18.2%81.2%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Lake Madison CDP4.72 sq mi0.2%100.0%
Madison city4.62 sq mi0.2%100.0%
Vilas town2.98 sq mi0.1%100.0%
Arlington city1.72 sq mi0.1%100.0%
Elkton city1.49 sq mi0.1%100.0%
Carthage city1.46 sq mi0.1%100.0%
De Smet city1.16 sq mi<0.1%100.0%
Volga city1.11 sq mi<0.1%97.2%
Badger town1.06 sq mi<0.1%100.0%
Nunda town1.01 sq mi<0.1%100.0%
Rustic Acres Colony CDP1.00 sq mi<0.1%100.0%
Winfred CDP1.00 sq mi<0.1%100.0%
Howard city0.96 sq mi<0.1%100.0%
White city0.87 sq mi<0.1%100.0%
Chester CDP0.82 sq mi<0.1%100.0%
Lake Preston city0.76 sq mi<0.1%100.0%
Bushnell town0.71 sq mi<0.1%99.8%
Iroquois city0.54 sq mi<0.1%86.5%
Brant Lake South CDP0.53 sq mi<0.1%100.0%
Norfeld Colony CDP0.50 sq mi<0.1%100.0%
Erwin town0.48 sq mi<0.1%100.0%
Graceville Colony CDP0.46 sq mi<0.1%100.0%
Roswell CDP0.41 sq mi<0.1%100.0%
Bruce city0.37 sq mi<0.1%100.0%
Sinai town0.37 sq mi<0.1%99.9%

Showing top 25 of 38 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
SD At-Large26,279100.0%3.0%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
20,340
Active Voters
18,324 (90.1%)

Party Registration

PartyVotersShare
Democratic4,22520.8%
Republican11,36655.9%
Unaffiliated<10—
Other parties2,98514.7%
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202414,095 (69.3%)0 (0.0%)0 (0.0%)
2021–202211,738 (57.7%)0 (0.0%)0 (0.0%)
2019–202012,970 (63.8%)0 (0.0%)0 (0.0%)
2017–201810,780 (53.0%)0 (0.0%)0 (0.0%)
2015–201610,954 (53.9%)0 (0.0%)0 (0.0%)
2013–20148,385 (41.2%)0 (0.0%)0 (0.0%)
2011–201210,036 (49.3%)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
26,132 (± 437)
Median Age
42.0
Median Household Income
$78,192 (± $4,817)
High School Graduate or Higher (age 25+)
94.0%
Bachelor's Degree or Higher (age 25+)
29.7%

Population by Age

GroupPeopleShare
Under 185,98422.9%
18 to 6414,38655.1%
65 and over5,76222.0%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,2354.7%
White, not Hispanic23,63290.4%
Black, not Hispanic1390.5%
Asian, not Hispanic1630.6%
American Indian / Alaska Native, not Hispanic3671.4%
Native Hawaiian / Pacific Islander, not Hispanic190.1%
Some other race, not Hispanic570.2%
Two or more races, not Hispanic5202.0%

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
25,612
Citizen Voting Age Population (CVAP)
19,643

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic24,78896.8%
Hispanic8243.2%
White23,79992.9%
Black1390.5%
Asian1260.5%
American Indian / Alaska Native3651.4%
Native Hawaiian / Pacific Islander160.1%
Two or More Races350.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic19,29098.2%
Hispanic3501.8%
White18,60594.7%
Black1690.9%
Asian1280.7%
American Indian / Alaska Native3481.8%
Native Hawaiian / Pacific Islander160.1%
Two or More Races280.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).