Wrentham leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 85% of adults in Wrentham typically vote, above the U.S. average of about 62%. Among adults in Wrentham, ~47% vote Democratic, ~38% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Wrentham compares
Among cities within 25 miles, Wrentham leans more Democratic than 67 of 156 neighbors.
Wrentham runs about 15 points more Republican than Massachusetts as a whole.
Why Wrentham 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 Wrentham, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 55% of adults in Wrentham hold a bachelor's degree, about 27 points above the U.S. average of 28%. Dense areas vote Democratic, and Wrentham sits in the top fifth on density (about 37%, above 83% of cities).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Wrentham, 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 Wrentham looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Wrentham 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- West Foxboro, MA D+13
- Plainville, MA D+6
- Franklin Town, MA D+16
- Norfolk, MA D+20
- South Walpole, MA D+16
- Foxborough, MA D+20
- Foxboro, MA D+13
- North Attleboro, MA D+8
- Bellingham, MA Even
- Attleboro Falls, MA D+10
Cities with Similar Populations
- Pepperell, MA D+2
- Freeland, MI R+29
- Valley Falls, RI Even
- Spencer, IA R+27
- Maysville, KY R+35
- Commerce, CA D+33
- Rochelle, IL R+18
- East Bethel, MN R+34
- Aransas Pass, TX R+46
- Bernalillo, NM 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.