18974 leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 88% of adults in 18974 typically vote, above the U.S. average of about 62%. Among adults in 18974, ~41% vote Democratic, ~47% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 18974 compares
Among zip codes within 15 miles, 18974 leans more Republican than 71 of 87 neighbors.
Politically, 18974 sits close to the rest of Pennsylvania.
Politics vary noticeably by block within 18974. The south side runs the most Democratic (D+9) and the northwest side runs the most Republican (R+13), a spread of about 22 points.
Why 18974 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 18974, not a ranked or complete list of what matters most.
18974 votes Republican even though it is densely developed (about 92%, far above the Pennsylvania average of 33%). Here an older population outweighs the Democratic lean that density usually predicts.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 18974, PA sits in the top quarter nationally on this measure.
Why turnout in 18974 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 18974 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in 18974 have completed high school, above 81% 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.