West Yarmouth leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 89% of adults in West Yarmouth typically vote, above the U.S. average of about 62%. Among adults in West Yarmouth, ~50% vote Democratic, ~39% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How West Yarmouth compares
Among cities within 25 miles, West Yarmouth leans more Democratic than 12 of 56 neighbors.
West Yarmouth runs about 13 points more Republican than Massachusetts as a whole.
Politics vary noticeably by neighborhood within West Yarmouth. The west side runs the most Democratic (D+28) and the northwest side runs the most Republican (Even), a spread of about 28 points.
Why West Yarmouth 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 West Yarmouth, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 62% of residents in West Yarmouth live in densely developed areas, about 26 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and West Yarmouth sits in the top quarter (about 32%, above 78% of cities).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; West Yarmouth, 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 West Yarmouth looks the way it does
Areas with strong routine healthcare access turn out at higher rates. West Yarmouth 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- South Yarmouth, MA D+19
- Barnstable Town, MA D+17
- Yarmouth Port, MA D+20
- Barnstable, MA D+16
- West Dennis, MA D+23
- Hyannis Port, MA D+12
- South Dennis, MA D+16
- Dennis, MA D+20
- Dennis Port, MA D+17
- Centerville, MA D+11
Cities with Similar Populations
- Virginia, MN Even
- Patterson, NY R+15
- Denison, IA R+22
- Kingston, RI D+40
- Perryton, TX R+55
- Dalhart, TX R+50
- Chester, NJ R+7
- Donaldsonville, LA D+42
- Reading, OH R+8
- Huntingburg, IN R+39
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.