18510 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 54% of adults in 18510 typically vote, below the U.S. average of about 62%. Among adults in 18510, ~33% vote Democratic, ~22% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 18510 compares
Among zip codes within 15 miles, 18510 leans more Democratic than 34 of 35 neighbors.
18510 runs about 22 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 18510 sits clearly on the Democratic side.
Politics vary noticeably by block within 18510. The west side is the most Democratic-leaning (D+28) and the east side is the least Democratic-leaning (D+11), a spread of about 16 points.
Why 18510 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 18510, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 18510 live in densely developed areas, about 62 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 51% of adults in 18510 have never been married, above 95% of zip codes. 18510 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; 18510, PA sits in the top quarter 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 18510 looks the way it does
Renters vote less often than owners. About 59% of households in 18510 rent, about 34 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.