54491 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 70% of adults in 54491 typically vote, above the U.S. average of about 62%. Among adults in 54491, ~21% vote Democratic, ~49% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 54491 compares
Among zip codes within 15 miles, 54491 leans more Republican than 3 of 5 neighbors.
54491 runs about 39 points more Republican than Wisconsin as a whole.
Politics vary noticeably by block within 54491. The southwest side is the most Republican-leaning (R+48) and the southeast side is the least Republican-leaning (R+36), a spread of about 12 points.
Why 54491 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 54491, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 54491, about 93% of residents are non-Hispanic white, about 21 points above the U.S. average of 72%; about 16% of adults hold a bachelor's degree, about 10 points below the Wisconsin average of 26%. Rural areas vote Republican, and 54491 sits in the bottom quarter on density (about 4%, below 88% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 54491, WI sits in the bottom quarter nationally 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 54491 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 54491 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 64%, above 58% 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.