Colwyn is a Democratic stronghold. About 88% of voters here vote Democratic and 12% Republican.
About 67% of adults in Colwyn typically vote, near the U.S. average of about 62%. Among adults in Colwyn, ~59% vote Democratic, ~8% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Colwyn compares
Among cities within 25 miles, Colwyn leans more Democratic than 247 of 253 neighbors.
Colwyn runs about 78 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Colwyn sits clearly on the Democratic side.
Why Colwyn 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 Colwyn, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 88% of residents in Colwyn live in densely developed areas, about 52 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 58% of adults in Colwyn have never been married, in the top fraction of cities. Colwyn runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Colwyn, PA sits in the top tenth 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 Colwyn looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Colwyn is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 46%, about 17 points below the Pennsylvania average of 64%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Darby, PA D+80
- Sharon Hill, PA D+75
- Yeadon, PA D+86
- Collingdale, PA D+52
- Aldan, PA D+40
- Folcroft, PA D+44
- East Lansdowne, PA D+68
- Glenolden, PA D+11
- Primos, PA D+21
- Lansdowne, PA D+68
Cities with Similar Populations
- Roanoke, IL R+60
- Millport, AL R+78
- Rangely, CO R+53
- Maple Park, IL R+29
- Delta Junction, AK R+43
- Jeffersonville, VT D+5
- Pleasant Hill, OR R+15
- Wilson, OK R+73
- Greenfield, IA R+38
- Livingston Manor, NY R+16
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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.