Washington leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 82% of adults in Washington typically vote, above the U.S. average of about 62%. Among adults in Washington, ~48% vote Democratic, ~35% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Washington compares
Among cities within 25 miles, Washington leans more Democratic than 49 of 112 neighbors.
Washington runs about 8 points more Republican than Massachusetts as a whole.
Politics vary noticeably by neighborhood within Washington. The east side is the most Democratic-leaning (D+20) and the northeast side is the least Democratic-leaning (D+2), a spread of about 17 points.
Why Washington 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 Washington, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 31% of adults in Washington hold a bachelor's degree, above 76% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Washington, 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 Washington looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Washington 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Washington own their home, about 16 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Hinsdale, MA Even
- Peru, MA R+5
- Becket, MA D+21
- Middlefield, MA D+26
- Lenox Dale, MA D+39
- Dalton, MA D+18
- Lenox, MA D+39
- Lee, MA D+32
- North Otis, MA D+18
Cities with Similar Populations
- Dukes, KY R+60
- Shannon City, IA R+51
- Topsey, TX R+65
- Mummasburg, PA R+42
- Wilson Creek, WA R+71
- Parksville, SC R+32
- Telbasta, NE R+55
- Elco, PA R+38
- Rosston, OK R+82
- Sunny Side, TX R+14
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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.