18936 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 92% of adults in 18936 typically vote, above the U.S. average of about 62%. Among adults in 18936, ~54% vote Democratic, ~38% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How 18936 compares
Among zip codes within 15 miles, 18936 leans more Democratic than 40 of 77 neighbors.
18936 runs about 20 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 18936 sits clearly on the Democratic side.
Politics vary noticeably by block within 18936. The north side is the most Democratic-leaning (D+18) and the south side is the least Democratic-leaning (D+8), a spread of about 10 points.
Why 18936 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 18936, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 59% of adults in 18936 hold a bachelor's degree, about 30 points above the U.S. average of 28%. Dense areas vote Democratic, and 18936 sits in the top fifth on density (about 92%, above 89% of zip codes). 18936 runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 18936, PA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 18936 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 18936 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 18936 own their home, above 84% 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.