Granville leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 71% of adults in Granville typically vote, above the U.S. average of about 62%. Among adults in Granville, ~30% vote Democratic, ~41% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Granville compares
Among cities within 25 miles, Granville leans more Republican than 58 of 61 neighbors.
Granville runs about 41 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while Granville is one of the few Republican-leaning pockets.
Why Granville 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 Granville, not a ranked or complete list of what matters most.
Granville votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while Granville runs about 41 points more Republican.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Granville, MA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Granville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Granville 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 73%, about 13 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Granville own their home, about 19 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Granville have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- West Granville, MA R+16
- Granville Center, MA R+17
- Mundale, MA R+16
- Roosterville, MA R+6
- Blandford, MA R+12
- Gillett Corner, MA R+14
- Russell, MA R+17
- Southwick, MA R+15
- Westfield, MA Even
- East Otis, MA D+6
Cities with Similar Populations
- Polktown, PA R+54
- Ashton, IA R+67
- Schmidt Corner, MI R+12
- Berryton, GA R+69
- Deport, TX R+77
- Higginbotham, LA R+73
- Kimball, WV R+23
- Sparkman, AR R+58
- Estabrook, CO R+27
- West Carlisle, TX R+75
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.