17887 leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 65% of adults in 17887 typically vote, near the U.S. average of about 62%. Among adults in 17887, ~38% vote Democratic, ~27% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 17887 compares
Among zip codes within 15 miles, 17887 is the most Democratic-leaning.
17887 runs about 17 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and 17887 sits clearly on the Democratic side.
Politics vary noticeably by block within 17887. The northwest side runs the most Democratic (D+17) and the southeast side runs the most Republican (R+61), a spread of about 78 points.
Why 17887 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 17887, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 71% of adults in 17887 have never been married, far above similar-sized zip codes (around 36%). 17887 runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 17887, PA sits in the top tenth nationally on this measure.
Why turnout in 17887 looks the way it does
Homeowners vote more often than renters. More than 99% of households in 17887 own their home, about 20 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.