18301 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 74% of adults in 18301 typically vote, above the U.S. average of about 62%. Among adults in 18301, ~44% vote Democratic, ~30% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 18301 compares
Among zip codes within 15 miles, 18301 leans more Democratic than 32 of 34 neighbors.
18301 runs about 19 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 18301 sits clearly on the Democratic side.
Politics vary noticeably by block within 18301. The southeast side runs the most Democratic (D+25) and the southwest side runs the most Republican (Even), a spread of about 26 points.
Why 18301 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 18301, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 39% of adults in 18301 have never been married, modestly above similar-sized zip codes (around 29%). 18301 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; 18301, PA sits in the top quarter nationally on this measure.
Why turnout in 18301 looks the way it does
Turnout in 18301 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.