53205 is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.
About 65% of adults in 53205 typically vote, near the U.S. average of about 62%. Among adults in 53205, ~59% vote Democratic, ~6% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 53205 compares
Among zip codes within 15 miles, 53205 leans more Democratic than 46 of 48 neighbors.
53205 runs about 83 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and 53205 sits clearly on the Democratic side.
Why 53205 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 53205, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 53205 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 68% of adults in 53205 have never been married, in the top fraction of zip codes. 53205 runs against the grain of Wisconsin, a Democratic-leaning outlier in a roughly evenly split state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 53205, WI sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 53205 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 53205 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 43%, about 23 points below the Wisconsin average of 66%. 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.