54540 leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 77% of adults in 54540 typically vote, above the U.S. average of about 62%. Among adults in 54540, ~27% vote Democratic, ~50% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 54540 compares
Among zip codes within 15 miles, 54540 is the most Republican-leaning.
54540 runs about 29 points more Republican than Wisconsin as a whole.
Politics vary noticeably by block within 54540. The southeast side is the most Republican-leaning (R+33) and the northwest side is the least Republican-leaning (R+19), a spread of about 14 points.
Why 54540 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 54540, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in 54540 live in densely developed areas, about 21 points below the Wisconsin average of 24%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 54540, WI sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 54540 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 54540 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 96% of adults in 54540 have completed high school, above 83% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.