18327 leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 90% of adults in 18327 typically vote, above the U.S. average of about 62%. Among adults in 18327, ~51% vote Democratic, ~40% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How 18327 compares
Among zip codes within 15 miles, 18327 leans more Democratic than 25 of 27 neighbors.
18327 runs about 15 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 18327 sits clearly on the Democratic side.
Why 18327 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 18327, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 47% of adults in 18327 hold a bachelor's degree, about 18 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 37% of adults in 18327 have never been married, above 83% of zip codes. 18327 runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 18327, PA sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 18327 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 18327 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in 18327 have completed high school, above 81% 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.