01033 is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.
About 88% of adults in 01033 typically vote, above the U.S. average of about 62%. Among adults in 01033, ~43% vote Democratic, ~45% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 01033 compares
Among zip codes within 15 miles, 01033 sits roughly in the middle of the political spectrum, with 39 neighbors leaning further in the place's direction and 11 leaning the other way.
01033 runs about 26 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while 01033 sits closer to the political middle.
Why 01033 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 01033, not a ranked or complete list of what matters most.
01033 votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while 01033 runs about 26 points more Republican.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 01033, MA sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 01033 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 01033 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 73%, about 13 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in 01033 own their home, compared to around 60% in nearby 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.