Eden, SD Political Map | Democrat & Republican Areas in Eden

By the BestNeighborhood data science team. Last updated May 2026.

Eden leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.

 

About 55% of adults in Eden typically vote, below the U.S. average of about 62%. Among adults in Eden, ~21% vote Democratic, ~34% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.

How Eden compares

Among cities within 25 miles, Eden leans more Republican than 4 of 17 neighbors.

Eden runs about 6 points more Democratic than South Dakota as a whole.

Politics vary noticeably by neighborhood within Eden. The southwest side is the most Republican-leaning (R+44) and the east side is the least Republican-leaning (R+20), a spread of about 25 points.

Why Eden leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Eden. 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; Eden, SD sits in the bottom quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Eden 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. Eden 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 Eden sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.

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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.