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

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

Corona is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.

 

About 68% of adults in Corona typically vote, above the U.S. average of about 62%. Among adults in Corona, ~15% vote Democratic, ~53% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.

How Corona compares

Among cities within 25 miles, Corona leans more Republican than 26 of 29 neighbors.

Corona runs about 27 points more Republican than South Dakota as a whole.

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

Areas with many family households vote Republican. About 82% of households in Corona are family households, about 16 points above the U.S. average of 67%.

Population density and Republican lean

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

Why turnout in Corona looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Corona 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 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Corona 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.