Chilmark is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 79% of adults in Chilmark typically vote, above the U.S. average of about 62%. Among adults in Chilmark, ~66% vote Democratic, ~13% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Chilmark compares
Among cities within 25 miles, Chilmark is the most Democratic-leaning.
Chilmark runs about 43 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by neighborhood within Chilmark. The southwest side is the most Democratic-leaning (D+74) and the east side is the least Democratic-leaning (D+63), a spread of about 11 points.
Why Chilmark 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 Chilmark, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 67% of adults in Chilmark hold a bachelor's degree, about 38 points above the U.S. average of 28%.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Chilmark, 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 Chilmark looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Chilmark 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 97% of adults in Chilmark have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Nashaquitsa, MA D+64
- Menemsha, MA D+64
- West Tisbury, MA D+62
- Cuttyhunk, MA D+48
- Vineyard Haven, MA D+40
- Oak Bluffs, MA D+38
- Edgartown, MA D+33
- Katama, MA D+32
- Falmouth, MA D+47
- West Falmouth, MA D+46
Cities with Similar Populations
- Clarissa, MN R+54
- Pattonville, TX R+78
- Lennon Crossroads, NC R+35
- Pine Knoll Shores, NC R+22
- Aurora, TX R+68
- Mansfield, IL R+36
- Mountainair, NM R+33
- West Stockbridge, MA D+58
- Bailey, MS R+58
- Satanta, KS R+67
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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.