Sewickley Hills is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.
About more than 99% of adults in Sewickley Hills typically vote, above the U.S. average of about 62%. Among adults in Sewickley Hills, ~49% vote Democratic, ~50% Republican, and ~1% don't vote. The map below shows estimated turnout by block group.
How Sewickley Hills compares
Among cities within 25 miles, Sewickley Hills sits roughly in the middle of the political spectrum, with 77 neighbors leaning further in the place's direction and 149 leaning the other way.
Politically, Sewickley Hills sits close to the rest of Pennsylvania.
Why Sewickley Hills leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Sewickley Hills. 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; Sewickley Hills, PA sits in the top tenth nationally on this measure.
Why turnout in Sewickley Hills looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sewickley Hills 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 99% of households in Sewickley Hills own their home, about 24 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sewickley Heights, PA Even
- Franklin Park, PA D+7
- Sewickley, PA D+15
- Bell Acres, PA Even
- Glenfield, PA R+2
- Glen Osborne, PA D+16
- Emsworth, PA D+12
- Edgeworth, PA D+23
- Ben Avon Heights, PA D+17
- Ben Avon, PA D+37
Cities with Similar Populations
- Afton, IA R+44
- Kellogg, IA R+46
- Vistula, IN R+58
- Valentine, IN R+63
- Riverside, WA R+47
- Fairgrove, MI R+48
- Weeping Water, NE R+47
- Anita, IA R+46
- Imler, PA R+73
- Hudson, ME R+35
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.