South Coatesville leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 65% of adults in South Coatesville typically vote, near the U.S. average of about 62%. Among adults in South Coatesville, ~45% vote Democratic, ~20% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How South Coatesville compares
Among cities within 25 miles, South Coatesville leans more Democratic than 154 of 161 neighbors.
South Coatesville runs about 40 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and South Coatesville sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within South Coatesville. The east side is the most Democratic-leaning (D+40) and the west side is the least Democratic-leaning (D+11), a spread of about 28 points.
Why South Coatesville 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 South Coatesville, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 53% of residents in South Coatesville live in densely developed areas, about 16 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 48% of adults in South Coatesville have never been married, above 97% of cities. South Coatesville runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; South Coatesville, PA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in South Coatesville looks the way it does
Turnout in South Coatesville 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
- Modena, PA D+40
- Coatesville, PA D+16
- Westwood, PA D+19
- Thorndale, PA D+10
- Sadsburyville, PA D+4
- Brandamore, PA R+9
- Parkesburg, PA R+9
- Downingtown, PA D+14
Cities with Similar Populations
- Calico Rock, AR R+66
- Loch Sheldrake, NY R+10
- Britton, SD R+39
- Neah Bay, WA D+40
- Reevesville, SC R+8
- Pavo, GA R+58
- Holland, TX R+58
- Inglewood, NE R+29
- Kewanna, IN R+56
- Cumberland City, TN R+63
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.