East Harwich leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 96% of adults in East Harwich typically vote, above the U.S. average of about 62%. Among adults in East Harwich, ~56% vote Democratic, ~40% Republican, and ~4% don't vote. The map below shows estimated turnout by block group.
How East Harwich compares
Among cities within 25 miles, East Harwich leans more Democratic than 12 of 37 neighbors.
East Harwich runs about 9 points more Republican than Massachusetts as a whole.
Politics vary noticeably by neighborhood within East Harwich. The southeast side is the most Democratic-leaning (D+30) and the north side is the least Democratic-leaning (D+8), a spread of about 22 points.
Why East Harwich 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 East Harwich, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 49% of adults in East Harwich hold a bachelor's degree, about 20 points above the U.S. average of 28%. Dense areas vote Democratic, and East Harwich sits in the top fifth on density (about 63%, above 90% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; East Harwich, MA sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in East Harwich looks the way it does
Areas with strong routine healthcare access turn out at higher rates. East Harwich 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%. Homeowners vote more often than renters, and about 91% of households in East Harwich own their home, about 15 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 99% of adults in East Harwich have completed high school, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- South Chatham, MA D+33
- Harwich, MA D+23
- West Chatham, MA D+31
- North Chatham, MA D+27
- Chatham, MA D+31
- Brewster, MA D+29
- Harwich Port, MA D+21
- Northwest Harwich, MA D+17
- South Orleans, MA D+31
- Orleans, MA D+38
Cities with Similar Populations
- Boalsburg, PA D+21
- Rexford, NY D+9
- Hiawassee, GA R+54
- Ivanhoe, CA R+2
- New Boston, NH R+8
- Piney, AR R+40
- Olivet, MI R+35
- Danville, NH R+12
- Penngrove, CA D+27
- Mine Hill, NJ R+3
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.