15085 leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 90% of adults in 15085 typically vote, above the U.S. average of about 62%. Among adults in 15085, ~33% vote Democratic, ~57% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How 15085 compares
Among zip codes within 15 miles, 15085 leans more Republican than 63 of 93 neighbors.
15085 runs about 24 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by block within 15085. The northwest side runs the most Democratic (D+20) and the southeast side runs the most Republican (R+36), a spread of about 56 points.
Why 15085 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 15085, not a ranked or complete list of what matters most.
15085 votes Republican even though it is densely developed (about 63%, well above the Pennsylvania average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 15085, PA sits above 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 15085 looks the way it does
Homeowners vote more often than renters. About 89% of households in 15085 own their home, about 10 points above the Pennsylvania average of 79%. 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.