Mummasburg leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 75% of adults in Mummasburg typically vote, above the U.S. average of about 62%. Among adults in Mummasburg, ~22% vote Democratic, ~53% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Mummasburg compares
Among cities within 25 miles, Mummasburg leans more Republican than 46 of 114 neighbors.
Mummasburg runs about 40 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Mummasburg. The northeast side is the most Republican-leaning (R+46) and the southeast side is the least Republican-leaning (R+14), a spread of about 32 points.
Why Mummasburg leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Mummasburg. The lean here lands roughly where demographic data alone would predict.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Mummasburg, PA sits in the top quarter nationally on this measure.
Why turnout in Mummasburg looks the way it does
Turnout in Mummasburg 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
- Arendtsville, PA R+32
- Stremmels, PA R+13
- McKnightstown, PA R+45
- Biglerville, PA R+46
- Table Rock, PA R+49
- Heidlersburg, PA R+27
- Gettysburg, PA R+12
- Cashtown, PA R+40
- Knoxlyn, PA R+43
- Hunterstown, PA R+31
Cities with Similar Populations
- Guilford Center, NY R+45
- Wilson Creek, WA R+71
- West Rumney, NH D+5
- East Hebron, NH R+8
- Orangeburg, KY R+61
- Sunny Side, TX R+14
- Belknap, IL R+62
- Griffing Park, TX D+52
- Mauzy, IN R+65
- West Tuckerton, NJ R+40
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.