57214 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 67% of adults in 57214 typically vote, near the U.S. average of about 62%. Among adults in 57214, ~17% vote Democratic, ~50% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 57214 compares
Among zip codes within 15 miles, 57214 is the least Republican-leaning.
57214 runs about 19 points more Republican than South Dakota as a whole.
Why 57214 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 57214, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. 57214 sits in the bottom quarter on density and about 94% of residents are non-Hispanic white, about 13 points above the South Dakota average of 81%. A high family-household share predicts Republican voting, and about 76% of households in 57214 are family households, above 82% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 57214, SD sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 57214 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 57214 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 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in 57214 own their home, about 20 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.