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

Roscoe is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.

 
Roscoe, SD block-group political-lean map
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About 64% of adults in Roscoe typically vote, near the U.S. average of about 62%. Among adults in Roscoe, ~11% vote Democratic, ~53% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.

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

Among cities within 25 miles, Roscoe leans more Republican than 6 of 13 neighbors.

Roscoe runs about 35 points more Republican than South Dakota as a whole.

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

Rural areas vote Republican. About 3% of residents in Roscoe live in densely developed areas, about 6 points below the South Dakota average of 9%.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Roscoe, SD sits in the top 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 Roscoe looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Roscoe is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 67%, about 7 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Roscoe own their home, about 18 points above the U.S. average of 75%. 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.