02359 is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 91% of adults in 02359 typically vote, above the U.S. average of about 62%. Among adults in 02359, ~44% vote Democratic, ~47% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How 02359 compares
Among zip codes within 15 miles, 02359 leans more Republican than 25 of 34 neighbors.
02359 runs about 29 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while 02359 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 02359. The north side runs the most Democratic (Even) and the east side runs the most Republican (R+9), a spread of about 11 points.
Why 02359 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 02359, not a ranked or complete list of what matters most.
02359 votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while 02359 runs about 29 points more Republican.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 02359, MA sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 02359 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 02359 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in 02359 own their home, about 15 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.