Westport leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 87% of adults in Westport typically vote, above the U.S. average of about 62%. Among adults in Westport, ~39% vote Democratic, ~48% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Westport compares
Among cities within 25 miles, Westport leans more Republican than 64 of 83 neighbors.
Westport runs about 35 points more Republican than Massachusetts as a whole. Massachusetts leans Democratic overall, while Westport is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Westport. The southeast side runs the most Democratic (D+13) and the north side runs the most Republican (R+27), a spread of about 40 points.
Why Westport 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 Westport, not a ranked or complete list of what matters most.
Westport votes Republican even though it is densely developed (about 23%, well below the Massachusetts average of 50%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Westport runs against the grain of Massachusetts, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Westport, 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 Westport looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Westport 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
- North Westport, MA R+18
- Head of Westport, MA R+5
- South Westport, MA D+3
- Tiverton, RI Even
- Dartmouth, MA R+12
- North Dartmouth, MA R+4
- Smith Mills, MA R+5
- Westport Point, MA D+18
- Little Compton, RI D+9
Cities with Similar Populations
- Airmont, NY R+44
- Indianola, MS D+56
- Stevensville, MT R+47
- Lasalle, IL R+9
- Winchendon, MA R+11
- Elsmere, KY R+16
- Jacksboro, TN R+65
- Gustine, CA R+14
- Bath, NY R+33
- Leola, PA R+29
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.