01516 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 85% of adults in 01516 typically vote, above the U.S. average of about 62%. Among adults in 01516, ~38% vote Democratic, ~47% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How 01516 compares
Among zip codes within 15 miles, 01516 leans more Republican than 27 of 38 neighbors.
01516 runs about 34 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while 01516 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 01516. The southwest side is the most Republican-leaning (R+20) and the east side is the least Republican-leaning (R+3), a spread of about 17 points.
Why 01516 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 01516, not a ranked or complete list of what matters most.
01516 votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while 01516 runs about 34 points more Republican. A high family-household share predicts Republican voting, and about 79% of households in 01516 are family households, above 90% of zip codes.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as 01516, MA does.
Why turnout in 01516 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 01516 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 about 98% of adults in 01516 have completed high school, above 93% 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.