17043 leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 82% of adults in 17043 typically vote, above the U.S. average of about 62%. Among adults in 17043, ~45% vote Democratic, ~37% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 17043 compares
Among zip codes within 15 miles, 17043 leans more Democratic than 23 of 33 neighbors.
17043 runs about 11 points more Democratic than Pennsylvania as a whole.
Politics vary noticeably by block within 17043. The east side is the most Democratic-leaning (D+14) and the north side is the least Democratic-leaning (D+2), a spread of about 11 points.
Why 17043 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 17043, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 98% of residents in 17043 live in densely developed areas, about 62 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 17043 sits in the top quarter (about 37%, above 77% of zip codes). A high never-married share predicts Democratic voting, and about 39% of adults in 17043 have never been married, above 87% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 17043, PA sits in the top quarter nationally on this measure.
Why turnout in 17043 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 17043 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 68%, about 8 points above the U.S. average of 60%. 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.