53821 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 83% of adults in 53821 typically vote, above the U.S. average of about 62%. Among adults in 53821, ~32% vote Democratic, ~51% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 53821 compares
Among zip codes within 15 miles, 53821 is the least Republican-leaning.
53821 runs about 20 points more Republican than Wisconsin as a whole.
Politics vary noticeably by block within 53821. The northeast side is the most Republican-leaning (R+31) and the northwest side is the least Republican-leaning (R+14), a spread of about 17 points.
Why 53821 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 53821, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 53821, about 93% of residents are non-Hispanic white, about 20 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 8 points below the Wisconsin average of 26%.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 53821, WI sits above 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 53821 looks the way it does
Turnout in 53821 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.