Attleboro leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 74% of adults in Attleboro typically vote, above the U.S. average of about 62%. Among adults in Attleboro, ~40% vote Democratic, ~34% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Attleboro compares
Among cities within 25 miles, Attleboro leans more Democratic than 79 of 139 neighbors.
Attleboro runs about 18 points more Republican than Massachusetts as a whole.
Politics vary noticeably by neighborhood within Attleboro. The northeast side runs the most Democratic (D+17) and the west side runs the most Republican (Even), a spread of about 19 points.
Why Attleboro 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 Attleboro, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 70% of residents in Attleboro live in densely developed areas, about 34 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Attleboro sits in the top quarter (about 34%, above 81% of cities). A high never-married share predicts Democratic voting, and about 33% of adults in Attleboro have never been married, above 83% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Attleboro, MA sits in the top quarter 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 Attleboro looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Attleboro 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 70%, about 10 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Attleboro Falls, MA D+10
- North Attleboro, MA D+8
- Valley Falls, RI Even
- Pawtucket, RI D+26
- Central Falls, RI D+23
- Plainville, MA D+6
- Cumberland, RI D+7
- Rehoboth, MA R+10
- Seekonk, MA Even
- Norton, MA Even
Cities with Similar Populations
- Nacogdoches, TX R+15
- Strongsville, OH R+6
- Valley Village, CA D+44
- Lake Ridge, VA D+26
- Del Rio, TX R+11
- Casselberry, FL R+4
- Coral Gables, FL D+3
- Brunswick, GA R+13
- Austell, GA D+58
- Cocoa, FL R+19
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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.