Breinigsville leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 95% of adults in Breinigsville typically vote, above the U.S. average of about 62%. Among adults in Breinigsville, ~50% vote Democratic, ~45% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Breinigsville compares
Among cities within 25 miles, Breinigsville leans more Democratic than 137 of 150 neighbors.
Breinigsville runs about 8 points more Democratic than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Breinigsville. The east side runs the most Democratic (D+17) and the northwest side runs the most Republican (R+15), a spread of about 32 points.
Why Breinigsville 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 Breinigsville, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 53% of adults in Breinigsville hold a bachelor's degree, about 24 points above the U.S. average of 28%. Dense areas vote Democratic, and Breinigsville sits in the top fifth on density (about 63%, above 90% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Breinigsville, PA sits in the top tenth nationally on this measure.
Why turnout in Breinigsville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Breinigsville 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Breinigsville have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Trexlertown, PA D+3
- Alburtis, PA R+18
- Fogelsville, PA R+15
- Macungie, PA R+3
- Mertztown, PA R+35
- Topton, PA R+23
- Orefield, PA R+7
- Dorneyville, PA D+8
- Bowers, PA R+33
- Emmaus, PA R+6
Cities with Similar Populations
- Spring Hill, KS R+32
- Itasca, IL R+6
- Yorkshire, VA D+12
- Rancho Santa Fe, CA R+4
- Clarksville, MD D+34
- Mendota Heights, MN D+22
- Navasota, TX R+15
- Fort Oglethorpe, GA R+45
- Gifford, FL D+22
- Warren, RI D+9
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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.