57069 leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 59% of adults in 57069 typically vote, near the U.S. average of about 62%. Among adults in 57069, ~32% vote Democratic, ~27% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 57069 compares
Among zip codes within 15 miles, 57069 is the most Democratic-leaning.
57069 runs about 38 points more Democratic than South Dakota as a whole. South Dakota leans Republican overall, while 57069 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 57069. The south side runs the most Democratic (D+29) and the northeast side runs the most Republican (R+45), a spread of about 74 points.
Why 57069 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 57069, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 50% of adults in 57069 hold a bachelor's degree, about 22 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 58% of adults in 57069 have never been married, above 98% of zip codes. 57069 runs against the grain of South Dakota, a Democratic-leaning pocket in a Republican-leaning state.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as 57069, SD does.
Why turnout in 57069 looks the way it does
Renters vote less often than owners. About 52% of households in 57069 rent, about 27 points above the U.S. average of 25%. 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.