Quarryville is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 72% of adults in Quarryville typically vote, above the U.S. average of about 62%. Among adults in Quarryville, ~17% vote Democratic, ~55% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Quarryville compares
Among cities within 25 miles, Quarryville leans more Republican than 99 of 138 neighbors.
Quarryville runs about 50 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Quarryville. The northeast side is the most Republican-leaning (R+62) and the southeast side is the least Republican-leaning (R+46), a spread of about 16 points.
Why Quarryville leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Quarryville, not a ranked or complete list of what matters most.
Quarryville votes Republican even though it is densely developed (about 28%, modestly below the Pennsylvania average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 78% of households in Quarryville are family households, above 84% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Quarryville, PA sits in the top quarter nationally on this measure.
Why turnout in Quarryville looks the way it does
Turnout in Quarryville sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Collins, PA R+58
- Mechanics Grove, PA R+58
- Unicorn, PA R+58
- New Providence, PA R+51
- Kirkwood, PA R+57
- Strasburg, PA R+49
- Refton, PA R+58
- Little Britain, PA R+56
- Drumore, PA R+62
- Christiana, PA R+54
Cities with Similar Populations
- Forest City, FL R+11
- Adairsville, GA R+60
- Valley Falls, RI Even
- Freeland, MI R+29
- Yeadon, PA D+86
- Pepperell, MA D+2
- Wrentham, MA D+9
- Oak Grove, MO R+40
- Millersville, PA D+4
- Spencer, IA R+27
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.