02124 is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 49% of adults in 02124 typically vote, below the U.S. average of about 62%. Among adults in 02124, ~40% vote Democratic, ~9% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 02124 compares
Among zip codes within 15 miles, 02124 leans more Democratic than 94 of 111 neighbors.
02124 runs about 40 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within 02124. The southwest side is the most Democratic-leaning (D+76) and the southeast side is the least Democratic-leaning (D+47), a spread of about 29 points.
Why 02124 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 02124, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 98% of residents in 02124 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 02124 have never been married, above 94% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 02124, MA sits in the top tenth nationally on this measure.
Why turnout in 02124 looks the way it does
Renters vote less often than owners. About 58% of households in 02124 rent, about 33 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 26% of adults in 02124 report food insecurity, above 90% of zip codes. High-crime urban areas turn out at lower rates, and 02124 sits in the top 15% on a violent-crime measure. 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.