Bayside leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About more than 99% of adults in Bayside typically vote, above the U.S. average of about 62%. Among adults in Bayside, ~68% vote Democratic, ~34% Republican, and ~-2% don't vote. The map below shows estimated turnout by block group.
How Bayside compares
Among cities within 25 miles, Bayside leans more Democratic than 55 of 61 neighbors.
Bayside runs about 36 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and Bayside sits clearly on the Democratic side.
Why Bayside 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 Bayside, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 72% of adults in Bayside hold a bachelor's degree, about 44 points above the U.S. average of 28%. Dense areas vote Democratic, and Bayside sits in the top fifth on density (about 79%, above 94% of cities). Bayside runs against the grain of Wisconsin, a Democratic-leaning outlier in a roughly evenly split state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Bayside, WI sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Bayside looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Bayside 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 79%, about 19 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Bayside have completed high school, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fox Point, WI D+39
- River Hills, WI D+19
- Glendale, WI D+47
- Brown Deer, WI D+45
- Mequon, WI D+4
- Whitefish Bay, WI D+43
- Thiensville, WI D+6
- Shorewood, WI D+63
- Lakefield, WI R+13
- Milwaukee, WI D+18
Cities with Similar Populations
- Chauvin, LA R+75
- Elk Ridge, UT R+60
- West Liberty, IA R+7
- West Lebanon, NH D+49
- Carey, OH R+50
- Georgia, VT R+21
- Moody, TX R+65
- Welsh, LA R+58
- Breckenridge Hills, MO D+33
- Avalon, PA D+31
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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.