54520 leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 68% of adults in 54520 typically vote, above the U.S. average of about 62%. Among adults in 54520, ~25% vote Democratic, ~43% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How 54520 compares
Among zip codes within 15 miles, 54520 is the least Republican-leaning.
54520 runs about 25 points more Republican than Wisconsin as a whole.
Politics vary noticeably by block within 54520. The north side is the most Republican-leaning (R+38) and the east side is the least Republican-leaning (R+14), a spread of about 25 points.
Why 54520 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 54520, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in 54520 hold a bachelor's degree, about 12 points below the Wisconsin average of 26%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 54520, WI sits below the national average 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 54520 looks the way it does
Turnout in 54520 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.