Belvidere leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 46% of adults in Belvidere typically vote, below the U.S. average of about 62%. Among adults in Belvidere, ~16% vote Democratic, ~30% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How Belvidere compares
Among cities within 25 miles, Belvidere leans more Republican than 4 of 8 neighbors.
Politically, Belvidere sits close to the rest of South Dakota.
Politics vary noticeably by neighborhood within Belvidere. The west side is the most Republican-leaning (R+73) and the south side is the least Republican-leaning (R+12), a spread of about 62 points.
Why Belvidere leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Belvidere. The lean here lands roughly where demographic data alone would predict.
Population density and Republican lean
Places with low population density tend to lean Republican; Belvidere, SD sits in the bottom tenth nationally on this measure.
Why turnout in Belvidere looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Belvidere is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 40% of households in Belvidere rent, above 94% of cities. High-crime urban areas turn out at lower rates, and Belvidere sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Norris, SD R+4
- Long Valley, SD R+12
- Kadoka, SD R+57
- Okaton, SD R+53
- Nowlin, SD R+73
- Wanblee, SD D+43
- White River, SD R+27
- Westover, SD R+33
- Parmelee, SD D+58
- Midland, SD R+73
Cities with Similar Populations
- Troy, WV R+66
- Raymond, MT R+57
- Logansport, IA R+40
- Veseleyville, ND R+49
- Listonburg, PA R+62
- Tilton, MS R+81
- Liberty, NE R+62
- Mount Carbon, PA R+42
- Wandcrest Park, CO R+20
- Summum, IL R+59
All Local Stats
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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.