North Waltham leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 85% of adults in North Waltham typically vote, above the U.S. average of about 62%. Among adults in North Waltham, ~56% vote Democratic, ~29% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How North Waltham compares
Among neighborhoods within 5 miles, North Waltham leans more Democratic than 1 of 21 neighbors.
North Waltham runs about 8 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within North Waltham. The west side is the most Democratic-leaning (D+39) and the south side is the least Democratic-leaning (D+26), a spread of about 14 points.
Why North Waltham leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in North Waltham. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; North Waltham, Waltham, MA sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in North Waltham looks the way it does
Areas with strong routine healthcare access turn out at higher rates. North Waltham is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 75%, about 15 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Lakeview, Waltham, MA D+41
- The Lanes, Waltham, MA D+29
- Piety Corner, Waltham, MA D+37
- Waltham Highlands, Waltham, MA D+43
- Warrendale, Waltham, MA D+38
- Bleachery, Waltham, MA D+42
- Bank Square, Waltham, MA D+50
- Waverley Square, Belmont, MA D+62
- South Side, Waltham, MA D+59
- Bemis, Watertown Town, MA D+50
Neighborhoods with Similar Populations
- Home Gardens, Corona, CA D+6
- Central City East, Los Angeles, CA D+41
- Buckingham, Arlington, VA D+52
- Natomas Corporate Center, Sacramento, CA D+16
- Eiber, Lakewood, CO D+30
- Jefferson Westside, Eugene, OR D+71
- Nottingham, Katy, TX R+24
- Wickham, Coralville, IA D+34
- Arbor Lodge, Portland, OR D+75
- Belvidere, Lowell, MA D+22
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.