02671 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About more than 99% of adults in 02671 typically vote, above the U.S. average of about 62%. Among adults in 02671, ~64% vote Democratic, ~45% Republican, and ~-9% don't vote. The map below shows estimated turnout by block group.
How 02671 compares
Among zip codes within 15 miles, 02671 leans more Democratic than 9 of 27 neighbors.
02671 runs about 8 points more Republican than Massachusetts as a whole.
Why 02671 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 02671, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 52% of adults in 02671 hold a bachelor's degree, about 24 points above the U.S. average of 28%.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 02671, MA sits in the top quarter 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 02671 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 02671 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in 02671 own their home, about 22 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and more than 99% of adults in 02671 have completed high school, in the top fraction of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.