Sudbury leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% 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 84% of adults in Sudbury typically vote, above the U.S. average of about 62%. Among adults in Sudbury, ~34% vote Democratic, ~50% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Sudbury compares
Among cities within 25 miles, Sudbury leans more Republican than 57 of 83 neighbors.
Sudbury runs about 52 points more Republican than Vermont as a whole. Vermont leans Democratic overall, while Sudbury is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Sudbury. The southeast side is the most Republican-leaning (R+23) and the south side is the least Republican-leaning (R+8), a spread of about 15 points.
Why Sudbury 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 Sudbury, not a ranked or complete list of what matters most.
Sudbury votes against the grain of Vermont. Vermont leans Democratic overall, while Sudbury runs about 52 points more Republican.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Sudbury, VT sits in the top tenth nationally on this measure.
Why turnout in Sudbury looks the way it does
Homeowners vote more often than renters. About 94% of households in Sudbury own their home, about 11 points above the Vermont average of 83%. High high-school completion lines up with higher turnout, and about 97% of adults in Sudbury have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Hyde Manor, VT R+17
- Whiting, VT D+8
- Orwell, VT R+9
- Brandon, VT R+19
- Leicester, VT R+10
- Hubbardton, VT R+21
- Fernville, VT R+7
- Shoreham, VT Even
- Salisbury, VT R+3
- West Salisbury, VT R+2
Cities with Similar Populations
- Meador, WV R+73
- Sidney, IN R+62
- Howell, UT R+79
- Buxton, ME R+15
- Troy Center, ME R+31
- Blackstone, IL R+52
- Henkhaus, TX R+75
- Fordville, ND R+52
- Hazel Dell, IL R+63
- Farmers High, GA R+71
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.