19611 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 57% of adults in 19611 typically vote, near the U.S. average of about 62%. Among adults in 19611, ~35% vote Democratic, ~22% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 19611 compares
Among zip codes within 15 miles, 19611 leans more Democratic than 35 of 38 neighbors.
19611 runs about 25 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 19611 sits clearly on the Democratic side.
Why 19611 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 19611, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 19611 live in densely developed areas, about 61 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 48% of adults in 19611 have never been married, above 94% of zip codes. 19611 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; 19611, PA sits in the top tenth nationally on this measure.
Why turnout in 19611 looks the way it does
Renters vote less often than owners. About 50% of households in 19611 rent, about 25 points above the U.S. average of 25%. 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.