57324 is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 71% of adults in 57324 typically vote, above the U.S. average of about 62%. Among adults in 57324, ~14% vote Democratic, ~57% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 57324 compares
Among zip codes within 15 miles, 57324 leans more Republican than 2 of 3 neighbors.
57324 runs about 31 points more Republican than South Dakota as a whole.
Why 57324 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 57324. The lean here lands roughly where demographic data alone would predict.
Population density and Republican lean
Places with low population density tend to lean Republican; 57324, SD sits in the bottom tenth nationally on this measure.
Why turnout in 57324 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 57324 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 92% of households in 57324 own their home, about 17 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.