Chesterbrook, PA Political Map | Democrat & Republican Areas in Chesterbrook

By the BestNeighborhood data science team. Last updated May 2026.

Chesterbrook leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.

 

About 72% of adults in Chesterbrook typically vote, above the U.S. average of about 62%. Among adults in Chesterbrook, ~48% vote Democratic, ~24% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.

How Chesterbrook compares

Among cities within 25 miles, Chesterbrook leans more Democratic than 193 of 232 neighbors.

Chesterbrook runs about 36 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Chesterbrook sits clearly on the Democratic side.

Why Chesterbrook 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 Chesterbrook, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 74% of adults in Chesterbrook hold a bachelor's degree, about 46 points above the U.S. average of 28%. Dense areas vote Democratic, and Chesterbrook sits in the top fifth on density (about 82%, above 95% of cities). Chesterbrook 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; Chesterbrook, PA sits in the top tenth nationally on this measure.

Why turnout in Chesterbrook looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Chesterbrook 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 76%, about 16 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Chesterbrook have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.