Granville Center leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 73% of adults in Granville Center typically vote, above the U.S. average of about 62%. Among adults in Granville Center, ~31% vote Democratic, ~42% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Granville Center compares
Among cities within 25 miles, Granville Center leans more Republican than 53 of 54 neighbors.
Granville Center runs about 42 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while Granville Center is one of the few Republican-leaning pockets.
Why Granville Center 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 Center, not a ranked or complete list of what matters most.
Granville Center votes against the grain of Massachusetts. Massachusetts leans Democratic overall, while Granville Center runs about 42 points more Republican.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Granville Center, MA sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Granville Center looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Granville Center 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 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Granville Center 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 Center have completed high school, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Granville, MA R+16
- Mundale, MA R+16
- Gillett Corner, MA R+14
- West Granville, MA R+16
- Southwick, MA R+15
- Westfield, MA Even
- Russell, MA R+17
- Blandford, MA R+12
- Roosterville, MA R+6
- Montgomery, MA R+14
Cities with Similar Populations
- North Orwell, PA R+62
- Thornton, MI R+45
- Lake Norden, SD R+70
- Tyrone, KY R+48
- Interlaken, NJ R+11
- San Luis, CO D+41
- Nelson, MN R+52
- Wallace, CA R+49
- Harlansburg, PA R+51
- Saulsbury, WV 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.