Hillsboro leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 68% of adults in Hillsboro typically vote, above the U.S. average of about 62%. Among adults in Hillsboro, ~24% vote Democratic, ~44% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Hillsboro compares
Among cities within 25 miles, Hillsboro leans more Republican than 30 of 54 neighbors.
Hillsboro runs about 29 points more Republican than Wisconsin as a whole.
Politics vary noticeably by neighborhood within Hillsboro. The west side is the most Republican-leaning (R+33) and the south side is the least Republican-leaning (R+15), a spread of about 18 points.
Why Hillsboro leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Hillsboro. The lean here lands roughly where demographic data alone would predict.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Hillsboro, WI sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Hillsboro looks the way it does
Turnout in Hillsboro sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Yuba, WI R+26
- Valley, WI R+30
- Wonewoc, WI R+35
- Elroy, WI R+35
- West Lima, WI R+22
- Kendall, WI R+37
- Mount Tabor, WI R+37
- Hub City, WI R+17
- Bloom City, WI R+17
Cities with Similar Populations
- Zionsville, PA R+23
- Charleston, MS D+52
- Courtland, VA R+22
- Altoona, FL R+58
- Heavener, OK R+52
- Turbeville, SC R+30
- Stockholm, NJ R+29
- Linn Creek, MO R+60
- Franklin, TX R+66
- Harrah, WA R+4
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.