18038 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 82% of adults in 18038 typically vote, above the U.S. average of about 62%. Among adults in 18038, ~25% vote Democratic, ~57% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 18038 compares
Among zip codes within 15 miles, 18038 leans more Republican than 39 of 44 neighbors.
18038 runs about 36 points more Republican than Pennsylvania as a whole.
Why 18038 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 18038, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 85% of residents in 18038 drive to work alone, about 11 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 77% of households in 18038 are family households, above 84% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 18038, PA sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 18038 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 18038 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in 18038 own their home, about 17 points above the U.S. average of 75%. 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.