53151 leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 96% of adults in 53151 typically vote, above the U.S. average of about 62%. Among adults in 53151, ~42% vote Democratic, ~54% Republican, and ~4% don't vote. The map below shows estimated turnout by block group.
How 53151 compares
Among zip codes within 15 miles, 53151 leans more Republican than 43 of 55 neighbors.
53151 runs about 10 points more Republican than Wisconsin as a whole.
Politics vary noticeably by block within 53151. The west side is the most Republican-leaning (R+18) and the east side is the least Republican-leaning (R+4), a spread of about 13 points.
Why 53151 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 53151, not a ranked or complete list of what matters most.
53151 votes Republican even though it is densely developed (about 92%, far above the Wisconsin average of 24%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; 53151, WI sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in 53151 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 53151 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 75%, about 15 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in 53151 have completed high school, above 94% 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.