18371 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 61% of adults in 18371 typically vote, near the U.S. average of about 62%. Among adults in 18371, ~32% vote Democratic, ~29% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 18371 compares
Among zip codes within 15 miles, 18371 leans more Democratic than 11 of 15 neighbors.
18371 runs about 7 points more Democratic than Pennsylvania as a whole.
Why 18371 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 18371, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 33% of adults in 18371 have never been married, modestly above similar-sized zip codes (around 26%).
Housing overcrowding and voter turnout
Places with heavy housing overcrowding tend to turn out at a lower rate; 18371, PA sits in the top tenth nationally on this measure.
Why turnout in 18371 looks the way it does
Turnout in 18371 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.