01841 leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 37% of adults in 01841 typically vote, below the U.S. average of about 62%. Among adults in 01841, ~21% vote Democratic, ~16% Republican, and ~63% don't vote. The map below shows estimated turnout by block group.
How 01841 compares
Among zip codes within 15 miles, 01841 leans more Democratic than 30 of 45 neighbors.
01841 runs about 9 points more Republican than Massachusetts as a whole.
Why 01841 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 01841, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 98% of residents in 01841 live in densely developed areas, about 62 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 49% of adults in 01841 have never been married, above 94% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 01841, MA sits in the top tenth 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 01841 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 01841 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 20%, about 16 points above the Massachusetts average of 5%. Renters vote less often than owners, and about 68% of households in 01841 rent, compared to around 37% in nearby zip codes. High food insecurity lines up with lower turnout, and about 36% of adults in 01841 report food insecurity, above 97% 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.