57767 is a Republican stronghold. About 10% of voters here vote Democratic and 90% Republican.
About 58% of adults in 57767 typically vote, near the U.S. average of about 62%. Among adults in 57767, ~6% vote Democratic, ~52% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 57767 compares
57767 sits in a sparsely populated area with few comparable zip codes nearby.
57767 runs about 50 points more Republican than South Dakota as a whole.
Why 57767 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 57767. The lean here lands roughly where demographic data alone would predict.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; 57767, SD sits in the bottom tenth nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 57767 looks the way it does
Turnout in 57767 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.