Canton leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 83% of adults in Canton typically vote, above the U.S. average of about 62%. Among adults in Canton, ~52% vote Democratic, ~31% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Canton compares
Among cities within 25 miles, Canton leans more Democratic than 99 of 162 neighbors.
Politically, Canton sits close to the rest of Massachusetts.
Politics vary noticeably by neighborhood within Canton. The south side is the most Democratic-leaning (D+32) and the north side is the least Democratic-leaning (D+20), a spread of about 12 points.
Why Canton leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Canton, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 68% of residents in Canton live in densely developed areas, about 32 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Canton sits in the top quarter (about 67%, above 98% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Canton, MA sits in the top tenth nationally on this measure.
Why turnout in Canton looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Canton 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 76%, about 16 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Canton have completed high school, above 85% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Stoughton, MA D+23
- Norwood, MA D+23
- Randolph, MA D+49
- Sharon, MA D+43
- East Walpole, MA D+15
- Avon, MA D+15
- Westwood, MA D+28
- Dedham, MA D+27
- Walpole, MA D+16
- Hyde Park, MA D+59
Cities with Similar Populations
- Abingdon, VA R+41
- Manvel, TX D+5
- Piqua, OH R+43
- Chantilly, VA D+21
- Farragut, TN R+23
- West Memphis, AR D+44
- Harrison Township, MI R+11
- Harrison, AR R+53
- Scotch Plains, NJ D+23
- Natchitoches, LA D+10
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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.