18035 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 93% of adults in 18035 typically vote, above the U.S. average of about 62%. Among adults in 18035, ~32% vote Democratic, ~62% Republican, and ~6% don't vote. The map below shows estimated turnout by block group.
How 18035 compares
Among zip codes within 15 miles, 18035 leans more Republican than 32 of 44 neighbors.
18035 runs about 30 points more Republican than Pennsylvania as a whole.
Why 18035 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 18035. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 18035, PA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 18035 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 18035 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in 18035 own their home, about 20 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in 18035 have completed high school, above 95% 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.