Addison County, VT Political Map | Democrat & Republican Areas in Addison County

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

Addison County leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% 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 78% of adults in Addison County typically vote, above the U.S. average of about 62%. Among adults in Addison County, ~48% vote Democratic, ~30% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Addison County compares

Among counties within 50 miles, Addison County leans more Democratic than 7 of 8 neighbors.

Addison County runs about 10 points more Republican than Vermont as a whole.

Politics vary noticeably by city within Addison County. The northwest side runs the most Democratic (D+25) and the southwest side runs the most Republican (Even), a spread of about 26 points.

Why Addison County leans the way it does

This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Addison County, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 46% of adults in Addison County 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 33% of adults in Addison County have never been married, above 78% of counties.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Addison County, VT sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Addison County looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Addison County 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 96% of adults in Addison County have completed high school, above 95% of counties. Learn more about the findings and methodology on the political spectrum map.

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.