57576 is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 57% of adults in 57576 typically vote, near the U.S. average of about 62%. Among adults in 57576, ~10% vote Democratic, ~47% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 57576 compares
57576 sits in a sparsely populated area with few comparable zip codes nearby.
57576 runs about 36 points more Republican than South Dakota as a whole.
Why 57576 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 57576, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in 57576 live in densely developed areas, about 7 points below the South Dakota average of 9%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 57576, SD sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 57576 looks the way it does
High-crime urban areas turn out at lower rates, mostly because the housing stress common in those areas makes voting harder. 57576 sits in the top 15% nationally on a violent-crime measure. See CrimeGrade for more details. Strong routine healthcare access lines up with higher turnout, and 57576 sits in the top quarter on routine-care measures. 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.