Allston-Brighton is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 52% of adults in Allston-Brighton typically vote, below the U.S. average of about 62%. Among adults in Allston-Brighton, ~43% vote Democratic, ~9% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How Allston-Brighton compares
Among neighborhoods within 5 miles, Allston-Brighton leans more Democratic than 19 of 52 neighbors.
Allston-Brighton runs about 38 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Allston-Brighton. The southeast side is the most Democratic-leaning (D+74) and the north side is the least Democratic-leaning (D+53), a spread of about 21 points.
Why Allston-Brighton leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Allston-Brighton, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 75% of adults in Allston-Brighton hold a bachelor's degree, about 46 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 70% of adults in Allston-Brighton have never been married, above 98% of neighborhoods.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Allston-Brighton, Brighton, MA sits in the top quarter 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 Allston-Brighton looks the way it does
Renters vote less often than owners. About 79% of households in Allston-Brighton rent, about 54 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Washington Square, Brookline, MA D+72
- Faneuil, Brighton, MA D+62
- Coolidge Corner, Brookline, MA D+70
- North Brookline, Brookline, MA D+69
- Brookline Village Commercial District, Brookline, MA D+76
- Brookline Village, Brookline, MA D+74
- East Watertown, Watertown Town, MA D+62
- Riverside, Cambridge, MA D+78
- Cambridgeport, Cambridge, MA D+77
- West Cambridge, Cambridge, MA D+78
Neighborhoods 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.