57759 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 78% of adults in 57759 typically vote, above the U.S. average of about 62%. Among adults in 57759, ~17% vote Democratic, ~61% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 57759 compares
Among zip codes within 15 miles, 57759 leans more Republican than 4 of 6 neighbors.
57759 runs about 26 points more Republican than South Dakota as a whole.
Why 57759 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 57759, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 6% of residents in 57759 live in densely developed areas, about 31 points below the U.S. average of 36%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 57759, SD sits in the bottom quarter 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 57759 looks the way it does
Homeowners vote more often than renters. About 96% of households in 57759 own their home, about 19 points above the South Dakota average of 77%. 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.