15955 is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 77% of adults in 15955 typically vote, above the U.S. average of about 62%. Among adults in 15955, ~19% vote Democratic, ~58% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 15955 compares
Among zip codes within 15 miles, 15955 leans more Republican than 22 of 40 neighbors.
15955 runs about 49 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by block within 15955. The north side is the most Republican-leaning (R+57) and the west side is the least Republican-leaning (R+46), a spread of about 12 points.
Why 15955 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 15955, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 15955, about 96% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 16% of adults hold a bachelor's degree, about 9 points below the Pennsylvania average of 26%.
Foreign-born share and voter turnout
Places with a low foreign-born share tend to turn out in mixed patterns; 15955, PA sits in the bottom tenth nationally on this measure.
Why turnout in 15955 looks the way it does
Turnout in 15955 sits close to the national pattern. 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.