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

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

Westover leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.

 

About 48% of adults in Westover typically vote, below the U.S. average of about 62%. Among adults in Westover, ~16% vote Democratic, ~32% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.

How Westover compares

Among cities within 25 miles, Westover leans more Republican than 2 of 6 neighbors.

Politically, Westover sits close to the rest of South Dakota.

Politics vary noticeably by neighborhood within Westover. The north side is the most Republican-leaning (R+63) and the northwest side is the least Republican-leaning (R+12), a spread of about 52 points.

Why Westover leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Westover. The lean here lands roughly where demographic data alone would predict.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Westover, SD sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Westover looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Westover is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 37% of households in Westover rent, above 92% of cities. High-crime urban areas turn out at lower rates, and Westover sits in the top 15% on a violent-crime measure. 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.