Keyapaha leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 67% of adults in Keyapaha typically vote, near the U.S. average of about 62%. Among adults in Keyapaha, ~23% vote Democratic, ~45% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Keyapaha compares
Among cities within 25 miles, Keyapaha leans more Republican than 3 of 11 neighbors.
Politically, Keyapaha sits close to the rest of South Dakota.
Politics vary noticeably by neighborhood within Keyapaha. The northwest side runs the most Democratic (D+33) and the southeast side runs the most Republican (R+73), a spread of about 106 points.
Why Keyapaha leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Keyapaha. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Keyapaha, SD sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Keyapaha looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Keyapaha have completed high school, about 7 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mosher, SD R+61
- Sparks, NE R+78
- Millboro, SD R+73
- Okreek, SD D+27
- Olsonville, SD D+35
- Witten, SD R+71
- Hidden Timber, SD D+36
- Valentine, NE R+56
- Wewela, SD R+63
Cities with Similar Populations
- Arnold, KS R+80
- Queens Run, PA R+50
- Kent, AR R+59
- Scroggsfield, OH R+65
- Lovewell, KS R+74
- Roxbury, VA R+18
- Cedarvale, NM R+49
- Suedburg, PA R+60
- Lorenzen, MS D+17
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Sources and methodology
Precinct-level voting records used to fit the model come from South Dakota Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.