02534 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 72% of adults in 02534 typically vote, above the U.S. average of about 62%. Among adults in 02534, ~44% vote Democratic, ~28% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 02534 compares
Among zip codes within 15 miles, 02534 leans more Democratic than 24 of 29 neighbors.
Politically, 02534 sits close to the rest of Massachusetts.
Why 02534 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 02534, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 62% of adults in 02534 hold a bachelor's degree, about 34 points above the U.S. average of 28%.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 02534, 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 02534 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 02534 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%. High high-school completion lines up with higher turnout, and more than 99% of adults in 02534 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.