Hamill is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 52% of adults in Hamill typically vote, below the U.S. average of about 62%. Among adults in Hamill, ~8% vote Democratic, ~44% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How Hamill compares
Among cities within 25 miles, Hamill leans more Republican than 12 of 16 neighbors.
Hamill runs about 40 points more Republican than South Dakota as a whole.
Why Hamill leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Hamill, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Hamill live in densely developed areas, about 7 points below the South Dakota average of 9%.
Population density and Republican lean
Places with low population density tend to lean Republican; Hamill, SD sits in the bottom tenth nationally on this measure.
Why turnout in Hamill looks the way it does
High-crime urban areas turn out at lower rates, mostly because the housing stress common in those areas makes voting harder. Hamill sits in the top 15% nationally on a violent-crime measure. See CrimeGrade for more details. Strong routine healthcare access lines up with higher turnout, and Hamill sits in the top quarter on routine-care measures. Renters vote less often than owners, and about 28% of households in Hamill rent, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ideal, SD R+69
- Dixon, SD R+68
- Grandview, SD R+66
- Carter, SD R+56
- Winner, SD R+52
- Wewela, SD R+63
- Reliance, SD R+63
- Iona, SD R+67
- Oacoma, SD R+61
Cities with Similar Populations
- Los Vigiles, NM D+13
- Marvinville, AR R+70
- Gillingham, WI R+28
- South Worcester, NY R+36
- Birney Day School, MT D+14
- Big Rock, IA R+46
- St. Omer, IN R+61
- Forest Grove, MT R+74
- Canaan, AR R+66
- Reece, KS R+70
All Local Stats
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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.