15351 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 56% of adults in 15351 typically vote, below the U.S. average of about 62%. Among adults in 15351, ~16% vote Democratic, ~41% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 15351 compares
Among zip codes within 15 miles, 15351 leans more Republican than 44 of 59 neighbors.
15351 runs about 43 points more Republican than Pennsylvania as a whole.
Why 15351 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 15351, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 15351, about 98% of residents are non-Hispanic white, about 26 points above the U.S. average of 72%; about 2% of adults hold a bachelor's degree, about 24 points below the Pennsylvania average of 26%. A high family-household share predicts Republican voting, and about 84% of households in 15351 are family households, above 96% of zip codes.
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; 15351, PA sits in the bottom quarter nationally on this measure.
Why turnout in 15351 looks the way it does
Renters vote less often than owners. About 41% of households in 15351 rent, about 16 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 74% of adults in 15351 have completed high school, below 96% 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.