Allison Hill is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 54% of adults in Allison Hill typically vote, below the U.S. average of about 62%. Among adults in Allison Hill, ~44% vote Democratic, ~10% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Allison Hill compares
Among neighborhoods within 5 miles, Allison Hill leans more Democratic than 2 of 4 neighbors.
Allison Hill runs about 65 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Allison Hill sits clearly on the Democratic side.
Politics vary noticeably by block within Allison Hill. The northwest side is the most Democratic-leaning (D+72) and the southwest side is the least Democratic-leaning (D+57), a spread of about 15 points.
Why Allison Hill leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Allison Hill, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Allison Hill live in densely developed areas, about 64 points above the U.S. average of 36%. Allison Hill runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Allison Hill, Harrisburg, PA sits in the top tenth nationally on this measure.
Why turnout in Allison Hill looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Allison Hill is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 47%, about 17 points below the Pennsylvania average of 64%. Low high-school completion lines up with lower turnout, and about 80% of adults in Allison Hill have completed high school, below 85% of neighborhoods. High-crime urban areas turn out at lower rates, and Allison Hill sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Hall Manor, Harrisburg, PA D+59
- Midtown Harrisburg, Harrisburg, PA D+64
- Camp Curtin, Harrisburg, PA D+73
- Pine Brook, Camp Hill, PA Even
- Shiloh, York, PA R+12
- The Avenues, York, PA D+30
- Park Village, York, PA D+41
- Northwest Triangle, York, PA D+40
- Springetts Manor-Yorklyn, York, PA D+6
- Springdale, York, PA D+42
Neighborhoods with Similar Populations
- Clear Lake, Houston, TX R+8
- Far Southwest, Fort Worth, TX D+10
- Oak Park, San Diego, CA D+30
- Mount Washington, Cincinnati, OH D+13
- Original Daly City, Daly City, CA D+40
- Upper Eastside, Miami, FL D+25
- Paradise Hills, Henderson, NV R+17
- Admiral, Seattle, WA D+71
- Cheswolde, Baltimore, MD D+9
- Central Napa, Napa, CA D+39
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.