Swett, SD Political Map | Democrat & Republican Areas in Swett

By the BestNeighborhood data science team. Last updated May 2026.

Swett leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.

 

About 57% of adults in Swett typically vote, near the U.S. average of about 62%. Among adults in Swett, ~24% vote Democratic, ~33% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.

How Swett compares

Among cities within 25 miles, Swett leans more Republican than 8 of 9 neighbors.

Swett runs about 13 points more Democratic than South Dakota as a whole.

Politics vary noticeably by neighborhood within Swett. The northeast side runs the most Democratic (Even) and the west side runs the most Republican (R+17), a spread of about 18 points.

Why Swett 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 Swett, not a ranked or complete list of what matters most.

Areas with low college attainment vote Republican. About 10% of adults in Swett hold a bachelor's degree, about 15 points below the South Dakota average of 26%. A high family-household share predicts Republican voting, and about 80% of households in Swett are family households, above 89% of cities.

Population density and Republican lean

Places with low population density tend to lean Republican; Swett, SD sits in the bottom tenth nationally on this measure.

Why turnout in Swett looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Swett is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 42%, about 24 points below the South Dakota average of 66%. Renters vote less often than owners, and about 55% of households in Swett rent, about 30 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.

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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.