Byron leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 82% of adults in Byron typically vote, above the U.S. average of about 62%. Among adults in Byron, ~28% vote Democratic, ~54% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Byron compares
Among cities within 25 miles, Byron leans more Republican than 14 of 69 neighbors.
Byron runs about 32 points more Republican than Wisconsin as a whole.
Politics vary noticeably by neighborhood within Byron. The northwest side is the most Republican-leaning (R+45) and the east side is the least Republican-leaning (R+30), a spread of about 15 points.
Why Byron 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 Byron, not a ranked or complete list of what matters most.
Byron votes Republican even though it is densely developed (about 27%, about 9 points below the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Byron, WI sits in the top tenth nationally on this measure.
Why turnout in Byron looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Byron 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%. High high-school completion lines up with higher turnout, and about 97% of adults in Byron have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Fond du Lac, WI R+19
- Eldorado, WI R+39
- Fond Du Lac, WI R+11
- Oakfield, WI R+46
- Rosendale, WI R+45
- Marblehead, WI R+39
- Woodhull, WI R+43
- Van Dyne, WI R+37
- Taycheedah, WI R+31
- South Byron, WI R+48
Cities with Similar Populations
- Wooden Shoe Village, MI R+45
- Talma, IN R+61
- Pulaski, OH R+57
- Guilford, VT D+22
- Manchester, IL R+65
- O'Farrell, TX R+60
- Sheppton, PA R+48
- Potash, AL R+81
- Loma Mar, CA D+52
- Elk Garden, VA R+70
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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.