19118 is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 87% of adults in 19118 typically vote, above the U.S. average of about 62%. Among adults in 19118, ~74% vote Democratic, ~13% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How 19118 compares
Among zip codes within 15 miles, 19118 leans more Democratic than 99 of 123 neighbors.
19118 runs about 72 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 19118 sits clearly on the Democratic side.
Politics vary noticeably by block within 19118. The east side is the most Democratic-leaning (D+78) and the west side is the least Democratic-leaning (D+64), a spread of about 14 points.
Why 19118 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 19118, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 79% of adults in 19118 hold a bachelor's degree, about 50 points above the U.S. average of 28%. Dense areas vote Democratic, and 19118 sits in the top fifth on density (about 92%, above 89% of zip codes). 19118 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; 19118, 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 19118 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 19118 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 19118 have completed high school, above 95% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes 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.