Glen Mawr, PA Political Map | Democrat & Republican Areas in Glen Mawr

Glen Mawr is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.

 
Glen Mawr, PA block-group political-lean map
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About 77% of adults in Glen Mawr typically vote, above the U.S. average of about 62%. Among adults in Glen Mawr, ~14% vote Democratic, ~63% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.

Glen Mawr, PA block-group voter-turnout map
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How Glen Mawr compares

Among cities within 25 miles, Glen Mawr leans more Republican than 80 of 91 neighbors.

Glen Mawr runs about 62 points more Republican than Pennsylvania as a whole.

Politics vary noticeably by neighborhood within Glen Mawr. The west side is the most Republican-leaning (R+65) and the north side is the least Republican-leaning (R+43), a spread of about 21 points.

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

Areas with many family households vote Republican. About 80% of households in Glen Mawr are family households, about 13 points above the U.S. average of 67%.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Glen Mawr, PA sits above the national average 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 Glen Mawr looks the way it does

Homeowners vote more often than renters. About 92% of households in Glen Mawr own their home, about 13 points above the Pennsylvania average of 79%. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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.