18218 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 66% of adults in 18218 typically vote, near the U.S. average of about 62%. Among adults in 18218, ~21% vote Democratic, ~45% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 18218 compares
Among zip codes within 15 miles, 18218 leans more Republican than 15 of 45 neighbors.
18218 runs about 34 points more Republican than Pennsylvania as a whole.
Why 18218 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 18218, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 9% of adults in 18218 hold a bachelor's degree, about 17 points below the Pennsylvania average of 26%. Car-dependent areas vote Republican, and about 86% of residents in 18218 drive to work alone, above 89% of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 18218, PA sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 18218 looks the way it does
Turnout in 18218 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.