Braintree Town, MA Political Map | Democrat & Republican Areas in Braintree Town

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

Braintree Town leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.

 

About 76% of adults in Braintree Town typically vote, above the U.S. average of about 62%. Among adults in Braintree Town, ~42% vote Democratic, ~34% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.

How Braintree Town compares

Among cities within 25 miles, Braintree Town leans more Democratic than 38 of 137 neighbors.

Braintree Town runs about 14 points more Republican than Massachusetts as a whole.

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

Dense areas vote Democratic. About 82% of residents in Braintree Town live in densely developed areas, about 46 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Braintree Town sits in the top quarter (about 48%, above 92% of cities). A high never-married share predicts Democratic voting, and about 35% of adults in Braintree Town have never been married, above 87% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Braintree Town, MA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Braintree Town looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Braintree Town 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 73%, about 13 points above the U.S. average of 60%. 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 Massachusetts Secretary of the Commonwealth, 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.