Mattapoisett leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 86% of adults in Mattapoisett typically vote, above the U.S. average of about 62%. Among adults in Mattapoisett, ~47% vote Democratic, ~39% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Mattapoisett compares
Among cities within 25 miles, Mattapoisett leans more Democratic than 67 of 96 neighbors.
Mattapoisett runs about 15 points more Republican than Massachusetts as a whole.
Why Mattapoisett 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 Mattapoisett, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 54% of adults in Mattapoisett hold a bachelor's degree, about 26 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Mattapoisett, MA sits in the top tenth 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 Mattapoisett looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Mattapoisett 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 77%, about 17 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Mattapoisett own their home, about 17 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mattapoisett Center, MA D+13
- Tinkhamtown, MA R+10
- Fairhaven, MA R+3
- Marion, MA D+14
- Acushnet, MA R+18
- New Bedford, MA D+8
- Rochester, MA R+8
- Wareham Center, MA Even
- South Dartmouth, MA D+8
Cities with Similar Populations
- Carson, WA R+26
- Davis Junction, IL R+33
- Crownpoint, NM D+39
- Pitcairn, PA D+17
- Williamsport, IN R+54
- Wildwood Crest, NJ R+23
- Madawaska, ME R+17
- Goreville, IL R+52
- Pullman, MI R+28
- Elmira, MI R+36
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.