01201 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 71% of adults in 01201 typically vote, above the U.S. average of about 62%. Among adults in 01201, ~44% vote Democratic, ~27% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 01201 compares
Among zip codes within 15 miles, 01201 leans more Democratic than 15 of 28 neighbors.
Politically, 01201 sits close to the rest of Massachusetts.
Politics vary noticeably by block within 01201. The south side is the most Democratic-leaning (D+35) and the north side is the least Democratic-leaning (D+16), a spread of about 19 points.
Why 01201 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 01201, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 39% of adults in 01201 have never been married, modestly above similar-sized zip codes (around 34%).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 01201, MA sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 01201 looks the way it does
Turnout in 01201 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.