South Amherst is a Democratic stronghold. About 88% of voters here vote Democratic and 12% Republican.
About 73% of adults in South Amherst typically vote, above the U.S. average of about 62%. Among adults in South Amherst, ~64% vote Democratic, ~9% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How South Amherst compares
Among cities within 25 miles, South Amherst leans more Democratic than 110 of 111 neighbors.
South Amherst runs about 51 points more Democratic than Massachusetts as a whole.
Why South Amherst 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 South Amherst, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 82% of adults in South Amherst hold a bachelor's degree, about 54 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; South Amherst, 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 South Amherst looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Amherst 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 99% of adults in South Amherst have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Hadley, MA D+52
- Amherst, MA D+72
- Amherst Center, MA D+72
- Granby, MA Even
- Belchertown, MA D+24
- West Pelham, MA D+58
- Pelham, MA D+56
- Northampton, MA D+79
- Hatfield, MA D+33
- South Hadley, MA D+34
Cities with Similar Populations
- Almelund, MN R+42
- Oil Trough, AR R+67
- Buffalo Hill, VA R+43
- Gallatin, AR R+69
- Kellogg, KS R+50
- Morrill, KS R+63
- Old Spring Hill, AL R+36
- Monroe, SD R+54
- Montezuma, TN R+75
- Argyle, FL R+57
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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.