19312 leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 98% of adults in 19312 typically vote, above the U.S. average of about 62%. Among adults in 19312, ~63% vote Democratic, ~35% Republican, and ~2% don't vote. The map below shows estimated turnout by block group.
How 19312 compares
Among zip codes within 15 miles, 19312 leans more Democratic than 54 of 91 neighbors.
19312 runs about 30 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 19312 sits clearly on the Democratic side.
Politics vary noticeably by block within 19312. The west side is the most Democratic-leaning (D+36) and the southeast side is the least Democratic-leaning (D+15), a spread of about 21 points.
Why 19312 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 19312, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 78% of adults in 19312 hold a bachelor's degree, about 50 points above the U.S. average of 28%. Dense areas vote Democratic, and 19312 sits in the top fifth on density (about 74%, above 80% of zip codes). 19312 runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 19312, PA sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 19312 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 19312 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%. Homeowners vote more often than renters, and about 89% of households in 19312 own their home, above 84% of zip codes. High high-school completion lines up with higher turnout, and about 98% of adults in 19312 have completed high school, above 93% 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.