Williams Bay leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About more than 99% of adults in Williams Bay typically vote, above the U.S. average of about 62%. Among adults in Williams Bay, ~45% vote Democratic, ~54% Republican, and ~1% don't vote. The map below shows estimated turnout by block group.
How Williams Bay compares
Among cities within 25 miles, Williams Bay leans more Republican than 11 of 90 neighbors.
Williams Bay runs about 10 points more Republican than Wisconsin as a whole.
Politics vary noticeably by neighborhood within Williams Bay. The southeast side is the most Republican-leaning (R+18) and the south side is the least Republican-leaning (R+5), a spread of about 13 points.
Why Williams Bay 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 Williams Bay, not a ranked or complete list of what matters most.
Williams Bay votes Republican even though it is densely developed (about 31%, modestly above the Wisconsin average of 24%). Here an older population outweighs the Democratic lean that density usually predicts.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Williams Bay, WI 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 Williams Bay looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Williams Bay 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 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in Williams Bay have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fontana, WI R+6
- Fontana-on-Geneva Lake, WI R+2
- Como, WI R+16
- Linton, WI R+37
- Walworth, WI R+18
- Inlet, WI R+29
- Delavan Lake, WI R+22
- Lake Geneva, WI R+6
- Delavan, WI R+13
- Honey Creek, WI R+36
Cities with Similar Populations
- Loxahatchee Groves, FL R+36
- Montura, FL R+33
- Juliette, GA R+55
- Sutherland, VA R+30
- Mio, MI R+44
- Holmes, NY R+17
- Hokendauqua, PA R+5
- Dundee, IL Even
- Van Wyck, SC R+27
- Middleport, NY R+34
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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.