Montello leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 51% of adults in Montello typically vote, below the U.S. average of about 62%. Among adults in Montello, ~37% vote Democratic, ~14% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How Montello compares
Montello runs about 20 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Montello. The south side is the most Democratic-leaning (D+54) and the northeast side is the least Democratic-leaning (D+34), a spread of about 20 points.
Why Montello leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Montello. The lean here lands roughly where demographic data alone would predict.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Montello, Brockton, MA sits above the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Montello looks the way it does
Crowded housing lines up with lower turnout. About 7% of homes in Montello have more than one occupant per room, above 85% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Campello, Brockton, MA D+41
- Burrage, Hanson, MA Even
- East Milton, Milton, MA D+31
- Milton Upper Mills, Milton, MA D+67
- Whittenton, Taunton, MA Even
- East Dedham, Dedham, MA D+28
- Neponset, Boston, MA D+37
- Dorchester Center, Boston, MA D+71
- South Dorchester, Boston, MA D+57
- Fields Corner, Boston, MA D+49
Neighborhoods with Similar Populations
- Mission Bay, San Diego, CA D+21
- Valley High-North Laguna, Sacramento, CA D+33
- South Ozone Park, Queens, NY D+31
- Northeast Colorado Springs, Colorado Springs, CO Even
- Outer Sunset, San Francisco, CA D+49
- Downtown Memphis, Memphis, TN D+69
- Country Club, Bronx, NY D+66
- Sunnyvale West, Sunnyvale, CA D+37
- Makakilo-Kapolei-Honokai Hale, Kapolei, HI D+8
- Allapattah, Miami, FL R+6
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.