Mount Gretna leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 74% of adults in Mount Gretna typically vote, above the U.S. average of about 62%. Among adults in Mount Gretna, ~24% vote Democratic, ~50% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Mount Gretna compares
Among cities within 25 miles, Mount Gretna leans more Republican than 60 of 153 neighbors.
Mount Gretna runs about 33 points more Republican than Pennsylvania as a whole.
Why Mount Gretna leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Mount Gretna. The lean here lands roughly where demographic data alone would predict.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Mount Gretna, PA sits in the top tenth nationally on this measure.
Why turnout in Mount Gretna looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Mount Gretna 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Mount Gretna own their home, about 20 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Timber Hills, PA R+30
- Mount Gretna Heights, PA R+34
- Mount Hope, PA R+50
- Mount Wilson, PA R+35
- Cornwall, PA R+16
- Lawn, PA R+38
- Cleona, PA R+35
- Manheim, PA R+35
- Campbelltown, PA R+18
- Annville, PA R+31
Cities with Similar Populations
- Fairfield, NE R+67
- Wayne, WI R+49
- Wilmot, IN R+56
- Kemp, OH R+62
- Laura, IL R+42
- Orion, OK R+80
- Climax, MN R+55
- Gila, NM Even
- West Fort Ann, NY R+33
- Andover, IA R+47
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.