15689 leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 87% of adults in 15689 typically vote, above the U.S. average of about 62%. Among adults in 15689, ~22% vote Democratic, ~65% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How 15689 compares
Among zip codes within 15 miles, 15689 leans more Republican than 50 of 62 neighbors.
15689 runs about 47 points more Republican than Pennsylvania as a whole.
Why 15689 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 15689, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 92% of residents in 15689 drive to work alone, about 18 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and 15689 fits that profile on both counts.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 15689, 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 15689 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 15689 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 67%, about 7 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 15689 have completed high school, above 89% 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.