South Spencer leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 77% of adults in South Spencer typically vote, above the U.S. average of about 62%. Among adults in South Spencer, ~35% vote Democratic, ~42% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How South Spencer compares
Among cities within 25 miles, South Spencer leans more Republican than 71 of 110 neighbors.
South Spencer runs about 36 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while South Spencer is one of the few Republican-leaning pockets.
Why South Spencer 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 Spencer, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 95% of residents in South Spencer drive to work alone, about 21 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 85% of households in South Spencer are family households, above 97% of cities. South Spencer runs against the grain of Massachusetts, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; South Spencer, MA sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in South Spencer looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Spencer 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Spencer, MA R+4
- East Brookfield, MA R+14
- Tafts Corner, MA R+12
- Mystic Grove, MA R+10
- Lower Wire Village, MA R+17
- Leicester, MA R+11
- Rochdale, MA R+7
- North Brookfield, MA R+12
- Charlton, MA R+14
- Cherry Valley, MA R+6
Cities with Similar Populations
- Alburg Center, VT R+22
- Grand Isle, ME R+37
- Patronville, IN R+53
- Mendon Center, NY D+7
- Menemsha, MA D+64
- South Newbury, VT Even
- Lafayette, KY R+63
- Chipman, TN R+62
- Parnell, KY R+67
- La Jose, PA R+69
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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.