Willow leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 79% of adults in Willow typically vote, above the U.S. average of about 62%. Among adults in Willow, ~24% vote Democratic, ~56% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Willow compares
Among cities within 25 miles, Willow leans more Republican than 29 of 57 neighbors.
Willow runs about 51 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Willow is one of the few Republican-leaning pockets.
Why Willow leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Willow, not a ranked or complete list of what matters most.
Willow votes against the grain of Illinois. Illinois leans Democratic overall, while Willow runs about 51 points more Republican. Rural areas with a high white share vote Republican. Non-Hispanic white share in Willow is about 97%, about 25 points above the U.S. average of 72%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Willow, IL 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 Willow looks the way it does
Homeowners vote more often than renters. About 96% of households in Willow own their home, about 16 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and about 98% of adults in Willow have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Kent, IL R+42
- Stockton, IL R+28
- Pearl City, IL R+43
- Palsgrove, IL R+41
- Massbach, IL R+35
- Lena, IL R+43
- Waddams Grove, IL R+48
- Woodbine, IL R+32
- Eleroy, IL R+41
- Nora, IL R+42
Cities with Similar Populations
- Kenilworth, MT R+53
- Blue Grass, VA R+44
- Hagan, MN R+38
- Montezuma, CO D+19
- Martinsville, KY R+67
- Harrisburg, GA R+67
- Freeport, VA R+42
- Wilbur, WV R+70
- Maxville, MT R+32
- Union Center, SD R+83
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of Elections, 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.