16661 is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 69% of adults in 16661 typically vote, above the U.S. average of about 62%. Among adults in 16661, ~13% vote Democratic, ~56% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 16661 compares
Among zip codes within 15 miles, 16661 leans more Republican than 26 of 33 neighbors.
16661 runs about 61 points more Republican than Pennsylvania as a whole.
Why 16661 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 16661, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 11% of adults in 16661 hold a bachelor's degree, about 15 points below the Pennsylvania average of 26%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 16661, PA sits in the top tenth nationally on this measure.
Why turnout in 16661 looks the way it does
Homeowners vote more often than renters. About 94% of households in 16661 own their home, about 15 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.