Bleachery leans heavily Democratic by roughly 42 points: about 71% of voters vote Democratic and 29% Republican.
About 60% of adults in Bleachery typically vote, near the U.S. average of about 62%. Among adults in Bleachery, ~43% vote Democratic, ~17% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Bleachery compares
Among neighborhoods within 5 miles, Bleachery leans more Democratic than 5 of 24 neighbors.
Bleachery runs about 17 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Bleachery. The southwest side is the most Democratic-leaning (D+64) and the northeast side is the least Democratic-leaning (D+35), a spread of about 29 points.
Why Bleachery leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Bleachery. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Bleachery, Waltham, MA sits in the top quarter nationally on this measure.
Why turnout in Bleachery looks the way it does
Renters vote less often than owners. About 64% of households in Bleachery rent, about 39 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Bleachery sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- South Side, Waltham, MA D+59
- Bank Square, Waltham, MA D+50
- Warrendale, Waltham, MA D+38
- Waltham Highlands, Waltham, MA D+43
- Piety Corner, Waltham, MA D+37
- Bemis, Watertown Town, MA D+50
- Nonantum, Newton, MA D+49
- West Newton, Newton, MA D+60
- The Lanes, Waltham, MA D+29
- Waverley Square, Belmont, MA D+62
Neighborhoods with Similar Populations
- Girvin, Jacksonville, FL R+27
- Midtown District, San Diego, CA D+32
- North Clackamas, Oatfield, OR D+13
- Carpenter, Ann Arbor, MI D+50
- White Bridge, Nashville, TN D+20
- White City, Fort Pierce, FL R+26
- Fairview, Allentown, PA D+23
- Beverly Woods, Charlotte, NC D+7
- Diamond Hill-Jarvis, Fort Worth, TX D+20
- Huguenot, Staten Island, NY R+60
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.