53558 leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 91% of adults in 53558 typically vote, above the U.S. average of about 62%. Among adults in 53558, ~60% vote Democratic, ~31% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How 53558 compares
Among zip codes within 15 miles, 53558 leans more Democratic than 8 of 25 neighbors.
53558 runs about 33 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and 53558 sits clearly on the Democratic side.
Politics vary noticeably by block within 53558. The northwest side is the most Democratic-leaning (D+45) and the southwest side is the least Democratic-leaning (D+24), a spread of about 20 points.
Why 53558 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 53558, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 51% of adults in 53558 hold a bachelor's degree, about 23 points above the U.S. average of 28%. 53558 runs against the grain of Wisconsin, a Democratic-leaning outlier in a roughly evenly split state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 53558, WI sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 53558 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 53558 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 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in 53558 have completed high school, above 96% 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.