South Gibson leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 71% of adults in South Gibson typically vote, above the U.S. average of about 62%. Among adults in South Gibson, ~18% vote Democratic, ~54% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How South Gibson compares
Among cities within 25 miles, South Gibson leans more Republican than 112 of 125 neighbors.
South Gibson runs about 48 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within South Gibson. The northwest side is the most Republican-leaning (R+53) and the southeast side is the least Republican-leaning (R+40), a spread of about 13 points.
Why South Gibson leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in South Gibson. The lean here lands roughly where demographic data alone would predict.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; South Gibson, PA sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in South Gibson looks the way it does
Areas with strong routine healthcare access turn out at higher rates. South Gibson 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 65%, about 5 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- West Clifford, PA R+41
- Union Dale, PA R+37
- Jackson, PA R+51
- Harford, PA R+55
- Burnwood, PA R+39
- Elkdale, PA R+42
- West Lenox, PA R+45
- Lenoxville, PA R+39
- Herrick Center, PA R+39
- Kingsley, PA R+51
Cities with Similar Populations
- Donnally Mills, PA R+60
- Alta, WY D+6
- Sand Springs, TN R+59
- Hughey, TN R+71
- Wood Springs, TX R+37
- Long Beach, MD R+24
- Stillwater, OH R+54
- Koonsville, PA R+49
- Manokotak, AK D+27
- Iler, OH R+51
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.