Lone Tree is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 64% of adults in Lone Tree typically vote, near the U.S. average of about 62%. Among adults in Lone Tree, ~16% vote Democratic, ~48% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Lone Tree compares
Among cities within 25 miles, Lone Tree leans more Republican than 21 of 35 neighbors.
Lone Tree runs about 21 points more Republican than South Dakota as a whole.
Politics vary noticeably by neighborhood within Lone Tree. The north side is the most Republican-leaning (R+53) and the northeast side is the least Republican-leaning (R+40), a spread of about 12 points.
Why Lone Tree leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Lone Tree, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 77% of households in Lone Tree are family households, about 11 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Lone Tree, SD sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Lone Tree looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Lone Tree is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Lone Tree have completed high school, above 89% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Colman, SD R+53
- Egan, SD R+28
- Trent, SD R+53
- Flandreau, SD R+29
- Chester, SD R+49
- Dell Rapids, SD R+42
- Brant Lake, SD R+47
- Ward, SD R+39
- Rutland, SD R+53
- Wentworth, SD R+45
Cities with Similar Populations
- Chestnutburg, KY R+79
- Thornton, WA R+58
- Harkins Crossroads, AL R+60
- Paces, VA R+30
- Burchard, MN R+56
- Woodlawn, KS R+71
- Olympia, NC R+61
- Hopewell, TX R+69
- Parkersburg, IN R+61
- Sunnyside, PA R+44
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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.