18230 leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 73% of adults in 18230 typically vote, above the U.S. average of about 62%. Among adults in 18230, ~20% vote Democratic, ~53% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 18230 compares
Among zip codes within 15 miles, 18230 leans more Republican than 30 of 40 neighbors.
18230 runs about 44 points more Republican than Pennsylvania as a whole.
Why 18230 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 18230, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 9% of adults in 18230 hold a bachelor's degree, about 17 points below the Pennsylvania average of 26%. Car-dependent areas vote Republican, and about 85% of residents in 18230 drive to work alone, above 86% of zip codes.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; 18230, PA sits in the top tenth nationally on this measure.
Why turnout in 18230 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 18230 have completed high school, about 6 points above the Pennsylvania average of 91%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
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.