Lower Allen is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 86% of adults in Lower Allen typically vote, above the U.S. average of about 62%. Among adults in Lower Allen, ~43% vote Democratic, ~43% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Lower Allen compares
Among cities within 25 miles, Lower Allen sits roughly in the middle of the political spectrum, with 120 neighbors leaning further in the place's direction and 16 leaning the other way.
Politically, Lower Allen sits close to the rest of Pennsylvania.
Politics vary noticeably by neighborhood within Lower Allen. The southwest side runs the most Democratic (D+8) and the east side runs the most Republican (R+6), a spread of about 14 points.
Why Lower Allen leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Lower Allen. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Lower Allen, PA sits in the top tenth nationally on this measure.
Why turnout in Lower Allen looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Lower Allen 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lemoyne, PA D+11
- Camp Hill, PA D+10
- New Cumberland, PA R+9
- Wormleysburg, PA D+8
- Shiremanstown, PA Even
- Steelton, PA D+40
- Paxtang, PA D+25
- Bressler, PA D+12
- Penbrook, PA D+39
Cities with Similar Populations
- Chadron, NE R+31
- Pikeville, TN R+69
- Vanceboro, NC R+33
- Steelton, PA D+40
- Bolivia, NC R+34
- Moores Mill, AL R+22
- New Roads, LA D+27
- New Windsor, MD R+30
- Carthage, NY R+27
- Estherville, IA R+32
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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.