DeForest, WI Political Map | Democrat & Republican Areas in DeForest

By the BestNeighborhood data science team. Last updated May 2026.

DeForest leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.

 

About 95% of adults in DeForest typically vote, above the U.S. average of about 62%. Among adults in DeForest, ~55% vote Democratic, ~40% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.

How DeForest compares

Among cities within 25 miles, DeForest leans more Democratic than 43 of 62 neighbors.

DeForest runs about 18 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and DeForest sits clearly on the Democratic side.

Politics vary noticeably by neighborhood within DeForest. The southeast side is the most Democratic-leaning (D+23) and the northeast side is the least Democratic-leaning (D+5), a spread of about 19 points.

Why DeForest 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 DeForest, not a ranked or complete list of what matters most.

Dense areas vote Democratic. About 49% of residents in DeForest live in densely developed areas, about 13 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and DeForest sits in the top quarter (about 42%, above 88% of cities). DeForest runs against the grain of Wisconsin, a Democratic-leaning outlier in a roughly evenly split state.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; DeForest, WI sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in DeForest looks the way it does

Areas with strong routine healthcare access turn out at higher rates. DeForest 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 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in DeForest have completed high school, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.