Erdman is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 66% of adults in Erdman typically vote, near the U.S. average of about 62%. Among adults in Erdman, ~11% vote Democratic, ~55% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Erdman compares
Among cities within 25 miles, Erdman leans more Republican than 135 of 151 neighbors.
Erdman runs about 65 points more Republican than Pennsylvania as a whole.
Why Erdman 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 Erdman, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in Erdman hold a bachelor's degree, about 12 points below the Pennsylvania average of 26%.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; Erdman, PA sits in the bottom quarter nationally on this measure.
Why turnout in Erdman looks the way it does
Turnout in Erdman 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
- Spring Glen, PA R+62
- Rough And Ready, PA R+67
- Gratz, PA R+66
- Klingerstown, PA R+66
- Sacramento, PA R+60
- Rebuck, PA R+68
- Wiconisco, PA R+65
- Lykens, PA R+52
- Leck Kill, PA R+68
- Williamstown, PA R+51
Cities with Similar Populations
- Gardenville, PA R+6
- Gibbon, OR R+27
- Shepp, TN D+6
- Cactus Forest, AZ R+44
- Ashly, LA R+70
- Silver Ridge, ME R+47
- Gaddy, OK R+60
- Sandlake, OR R+24
- Skamokawa Valley, WA R+26
- Khedive, PA R+50
All Local Stats
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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.