Brattleboro leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican. These figures are model estimates: Vermont did not have precinct-level voting records available for training, so the numbers above come from demographic and health features rather than local ground truth.
About 72% of adults in Brattleboro typically vote, above the U.S. average of about 62%. Among adults in Brattleboro, ~50% vote Democratic, ~22% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Brattleboro compares
Among cities within 25 miles, Brattleboro leans more Democratic than 91 of 94 neighbors.
Brattleboro runs about 7 points more Democratic than Vermont as a whole.
Politics vary noticeably by neighborhood within Brattleboro. The north side is the most Democratic-leaning (D+51) and the south side is the least Democratic-leaning (D+27), a spread of about 24 points.
Why Brattleboro 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 Brattleboro, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 46% of adults in Brattleboro hold a bachelor's degree, about 18 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 34% of adults in Brattleboro have never been married, above 85% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Brattleboro, VT sits in the top quarter nationally on this measure.
Why turnout in Brattleboro looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Brattleboro have completed high school, about 6 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- West Brattleboro, VT D+42
- Guilford, VT D+22
- Marlboro, VT D+38
- West Chesterfield, NH D+5
- Hinsdale, NH R+20
- Chesterfield, NH D+3
- Green River, VT D+22
- Williamsville, VT D+37
- Harrisville, VT D+38
- Vernon, VT D+4
Cities with Similar Populations
- Rocky Point, NY R+24
- Kemp Mill, MD D+49
- Lyndhurst, OH D+35
- Marina Del Rey, CA D+43
- Forest Hill, TX D+55
- Pembroke, NC R+11
- Eaton, OH R+50
- Cocoa Beach, FL R+21
- Pelham, NH R+5
- Broadlands, VA D+21
Sources and methodology
Precinct-level voting records used to fit the model come from Vermont Secretary of State, Elections Division, 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. VT did not have precinct-level voting records available for training, so the figures here come from extrapolation across demographic, health, and land-use features rather than local ground truth. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.