17309 is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 85% of adults in 17309 typically vote, above the U.S. average of about 62%. Among adults in 17309, ~17% vote Democratic, ~68% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How 17309 compares
Among zip codes within 15 miles, 17309 leans more Republican than 31 of 32 neighbors.
17309 runs about 59 points more Republican than Pennsylvania as a whole.
Why 17309 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 17309, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 17309, about 94% of residents are non-Hispanic white, about 22 points above the U.S. average of 72%; about 14% of adults hold a bachelor's degree, about 12 points below the Pennsylvania average of 26%. Car-dependent areas vote Republican, and about 84% of residents in 17309 drive to work alone, above 83% of zip codes. A high family-household share predicts Republican voting, and about 78% of households in 17309 are family households, above 88% of zip codes.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 17309, PA sits in the top quarter nationally on this measure.
Why turnout in 17309 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 17309 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 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 17309 own their home, above 84% 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.