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

Willow is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.

 
Willow, SD block-group political-lean map
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About 68% of adults in Willow typically vote, above the U.S. average of about 62%. Among adults in Willow, ~11% vote Democratic, ~57% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.

Willow, SD block-group voter-turnout map
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How Willow compares

Among cities within 25 miles, Willow leans more Republican than 13 of 16 neighbors.

Willow runs about 39 points more Republican than South Dakota as a whole.

Politics vary noticeably by neighborhood within Willow. The west side is the most Republican-leaning (R+69) and the east side is the least Republican-leaning (R+58), a spread of about 11 points.

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

Rural areas with a high white share vote Republican. Willow sits in the bottom quarter on density and about 98% of residents are non-Hispanic white, about 18 points above the South Dakota average of 81%.

Population density and Republican lean

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

Why turnout in Willow looks the way it does

Turnout in Willow sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.