17101 is a Democratic stronghold. About 81% of voters here vote Democratic and 19% Republican.
About 55% of adults in 17101 typically vote, below the U.S. average of about 62%. Among adults in 17101, ~44% vote Democratic, ~10% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 17101 compares
Among zip codes within 15 miles, 17101 leans more Democratic than 32 of 34 neighbors.
17101 runs about 63 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 17101 sits clearly on the Democratic side.
Why 17101 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 17101, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 47% of adults in 17101 hold a bachelor's degree, about 19 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 61% of adults in 17101 have never been married, above 98% of zip codes. 17101 runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 17101, PA sits in the top tenth nationally on this measure.
Why turnout in 17101 looks the way it does
Renters vote less often than owners. About 94% of households in 17101 rent, about 69 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and 17101 sits in the top 15% on a violent-crime measure. 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.