Bethel Park is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 95% of adults in Bethel Park typically vote, above the U.S. average of about 62%. Among adults in Bethel Park, ~49% vote Democratic, ~46% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Bethel Park compares
Among cities within 25 miles, Bethel Park leans more Democratic than 190 of 254 neighbors.
Bethel Park runs about 7 points more Democratic than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Bethel Park. The northwest side runs the most Democratic (D+16) and the northeast side runs the most Republican (R+2), a spread of about 18 points.
Why Bethel Park 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 Bethel Park, not a ranked or complete list of what matters most.
Density pulls a place toward Democrats and a high white share pulls it toward Republicans. In Bethel Park the two roughly cancel.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Bethel Park, PA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Bethel Park looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Bethel Park 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Bethel Park have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Upper St. Clair, PA D+12
- South Park Township, PA R+10
- Castle Shannon, PA D+10
- Morgan, PA R+17
- Venetia, PA R+19
- Pleasant Hills, PA D+6
- Baldwin, PA D+3
- Bridgeville, PA Even
- Lawrence, PA R+12
- Dormont, PA D+39
Cities with Similar Populations
- Burlington, NJ D+36
- Lockport, IL R+12
- Roseburg, OR R+20
- North Olmsted, OH Even
- Sun Valley, CA D+17
- Troy, OH R+33
- Melrose Park, IL D+22
- Williston, ND R+58
- Westmont, CA D+61
- South Riding, VA D+20
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.