South Beaver Dam leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 72% of adults in South Beaver Dam typically vote, above the U.S. average of about 62%. Among adults in South Beaver Dam, ~23% vote Democratic, ~49% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How South Beaver Dam compares
Among cities within 25 miles, South Beaver Dam leans more Republican than 24 of 67 neighbors.
South Beaver Dam runs about 35 points more Republican than Wisconsin as a whole.
Why South Beaver Dam 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 South Beaver Dam, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 85% of residents in South Beaver Dam drive to work alone, about 11 points above the U.S. average of 74%.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; South Beaver Dam, WI sits in the bottom quarter nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in South Beaver Dam looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Beaver Dam 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Leipsig, WI R+37
- Beaver Dam, WI R+13
- North Lowell, WI R+44
- Astico, WI R+37
- Oak Grove, WI R+43
- Lowell, WI R+45
- South Randolph, WI R+43
- Fall River, WI R+22
- Woodland, WI R+45
- Minnesota Junction, WI R+45
Cities with Similar Populations
- Munsell, MO R+67
- Chicota, TX R+51
- Sandy Creek, NC R+45
- Toltec, AR R+49
- Kline, CO R+26
- Lombardsville, OH R+56
- Basin, MT R+38
- Bowers, PA R+33
- Walnut Grove, AR R+70
- Taylors Store, NC D+17
Sources and methodology
Precinct-level voting records used to fit the model come from Wisconsin Elections Commission, 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.