Trempealeau leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 70% of adults in Trempealeau typically vote, above the U.S. average of about 62%. Among adults in Trempealeau, ~27% vote Democratic, ~44% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Trempealeau compares
Among cities within 25 miles, Trempealeau leans more Republican than 28 of 60 neighbors.
Trempealeau runs about 23 points more Republican than Wisconsin as a whole.
Why Trempealeau leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Trempealeau. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Trempealeau, WI sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Trempealeau looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Trempealeau 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Trempealeau have completed high school, above 86% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pickwick, MN R+23
- Lamoille, MN R+22
- Galesville, WI R+23
- Nodine, MN R+18
- New Amsterdam, WI R+16
- Marshland, WI R+26
- Dakota, MN R+17
- Sugarloaf, MN R+19
- Pine Creek, WI R+28
- Holmen, WI R+6
Cities with Similar Populations
- Lloyd Harbor, NY R+6
- St. George, KS R+44
- Oakland City, IN R+46
- Triadelphia, WV R+46
- Gunter, TX R+61
- Clarkton, NC R+4
- Naples, ME R+3
- Arcola, IL R+38
- Mount Pocono, PA D+12
- Sale Creek, TN R+63
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.