53223 is a Democratic stronghold. About 80% of voters here vote Democratic and 20% Republican.
About 80% of adults in 53223 typically vote, above the U.S. average of about 62%. Among adults in 53223, ~64% vote Democratic, ~16% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 53223 compares
Among zip codes within 15 miles, 53223 leans more Democratic than 36 of 46 neighbors.
53223 runs about 61 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and 53223 sits clearly on the Democratic side.
Politics vary noticeably by block within 53223. The northwest side is the most Democratic-leaning (D+73) and the east side is the least Democratic-leaning (D+43), a spread of about 30 points.
Why 53223 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 53223, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 53223 is about 31%, about 41 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 44% of adults in 53223 have never been married, above 91% of zip codes. 53223 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; 53223, WI sits in the top quarter 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 53223 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 53223 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 61%. 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.