01255 leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 66% of adults in 01255 typically vote, near the U.S. average of about 62%. Among adults in 01255, ~36% vote Democratic, ~31% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 01255 compares
Among zip codes within 15 miles, 01255 leans more Democratic than 6 of 16 neighbors.
01255 runs about 17 points more Republican than Massachusetts as a whole.
Why 01255 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 01255, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 37% of adults in 01255 have never been married, about 7 points above the U.S. average of 29%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 01255, MA sits in the top tenth nationally on this measure.
Why turnout in 01255 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 01255 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 96% of households in 01255 own their home, about 21 points above the U.S. average of 75%. 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.