Yardley leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 91% of adults in Yardley typically vote, above the U.S. average of about 62%. Among adults in Yardley, ~58% vote Democratic, ~33% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Yardley compares
Among cities within 25 miles, Yardley leans more Democratic than 152 of 184 neighbors.
Yardley runs about 29 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Yardley sits clearly on the Democratic side.
Why Yardley 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 Yardley, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 87% of residents in Yardley live in densely developed areas, about 51 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Yardley sits in the top quarter (about 61%, above 97% of cities). Yardley 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; Yardley, PA sits in the top tenth nationally on this measure.
Why turnout in Yardley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Yardley 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 75%, about 15 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Yardley have completed high school, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Morrisville, PA D+17
- Woodbourne, PA D+7
- Washington Crossing, PA D+6
- Titusville, NJ D+21
- Fairless Hills, PA Even
- Trenton, NJ D+42
- Newtown, PA D+7
- Langhorne, PA D+4
- Levittown, PA R+2
- Pennington, NJ D+36
Cities with Similar Populations
- New Johnsonville, TN R+61
- Bethlehem, WV R+30
- Bellevue, IL R+14
- Loxahatchee, FL R+18
- Idaho Springs, CO D+27
- Prospect, PA R+45
- Orchard City, CO R+45
- Grove Hill, AL R+13
- Athens, WI R+47
- Iberia, MO R+73
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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.