Berwyn leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 98% of adults in Berwyn typically vote, above the U.S. average of about 62%. Among adults in Berwyn, ~62% vote Democratic, ~36% Republican, and ~2% don't vote. The map below shows estimated turnout by block group.
How Berwyn compares
Among cities within 25 miles, Berwyn leans more Democratic than 161 of 228 neighbors.
Berwyn runs about 28 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Berwyn sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Berwyn. The east side is the most Democratic-leaning (D+33) and the southeast side is the least Democratic-leaning (D+15), a spread of about 19 points.
Why Berwyn 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 Berwyn, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 76% of adults in Berwyn hold a bachelor's degree, about 48 points above the U.S. average of 28%. Dense areas vote Democratic, and Berwyn sits in the top fifth on density (about 74%, above 93% of cities). Berwyn runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Berwyn, PA sits in the top quarter nationally on this measure.
Why turnout in Berwyn looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Berwyn 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 77%, about 17 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Berwyn have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Paoli, PA D+30
- Chesterbrook, PA D+34
- Devon, PA D+32
- Malvern, PA D+20
- Valley Forge, PA D+16
- Wayne, PA D+31
- Devault, PA D+17
- Uwchland, PA D+25
- Newtown Square, PA D+5
- Immaculata, PA D+27
Cities with Similar Populations
- Nanticoke, PA R+17
- Edgewood, WA Even
- New Providence, NJ D+19
- Newcastle, WA D+43
- Kingston, MA D+4
- Longs, SC R+27
- Coopersburg, PA R+13
- Suffern, NY D+5
- Weigelstown, PA R+25
- Millbury, MA Even
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau of 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.