Fort Pierre leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 91% of adults in Fort Pierre typically vote, above the U.S. average of about 62%. Among adults in Fort Pierre, ~25% vote Democratic, ~66% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Fort Pierre compares
Among cities within 25 miles, Fort Pierre leans more Republican than 1 of 7 neighbors.
Fort Pierre runs about 17 points more Republican than South Dakota as a whole.
Politics vary noticeably by neighborhood within Fort Pierre. The southwest side is the most Republican-leaning (R+63) and the northeast side is the least Republican-leaning (R+45), a spread of about 18 points.
Why Fort Pierre 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 Fort Pierre, not a ranked or complete list of what matters most.
Fort Pierre votes Republican even though it is densely developed (about 33%, well above the South Dakota average of 9%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Fort Pierre, SD sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Fort Pierre looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Fort Pierre 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 72%, about 12 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pierre, SD R+32
- Mission Ridge, SD R+59
- Eakin, SD R+53
- Rousseau, SD R+63
- Okobojo, SD R+68
- Bretton, SD R+60
- Blunt, SD R+57
- Lacy, SD R+63
- Vivian, SD R+66
- DeGrey, SD R+55
Cities with Similar Populations
- Pinson, TN R+67
- Hale Center, TX R+42
- Holiday Island, AR R+47
- Perryville, AR R+61
- Marion, LA R+60
- Rothbury, MI R+33
- Marshallville, OH R+53
- Raleigh, MS R+61
- Springfield, SD R+58
- Crystal Beach, FL R+28
All Local Stats
Home Services
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.