Coatesville leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 77% of adults in Coatesville typically vote, above the U.S. average of about 62%. Among adults in Coatesville, ~45% vote Democratic, ~32% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Coatesville compares
Among cities within 25 miles, Coatesville leans more Democratic than 122 of 166 neighbors.
Coatesville runs about 18 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Coatesville sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Coatesville. The west side runs the most Democratic (D+31) and the northwest side runs the most Republican (R+15), a spread of about 45 points.
Why 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 Coatesville, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 57% of residents in Coatesville live in densely developed areas, about 21 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Coatesville sits in the top quarter (about 32%, above 78% of cities). A high never-married share predicts Democratic voting, and about 35% of adults in Coatesville have never been married, above 87% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Coatesville, PA sits in the top tenth nationally on this measure.
Why turnout in Coatesville looks the way it does
Turnout in 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
- South Coatesville, PA D+39
- Westwood, PA D+19
- Modena, PA D+40
- Thorndale, PA D+10
- Brandamore, PA R+9
- Sadsburyville, PA D+4
- Parkesburg, PA R+9
- Downingtown, PA D+14
Cities with Similar Populations
- Salina, KS R+21
- Morganton, NC R+32
- Holly Springs, NC D+7
- Zephyrhills, FL R+26
- Chesterfield, MO D+5
- Prescott Valley, AZ R+25
- Lompoc, CA D+10
- Chester, VA D+14
- Sherman, TX R+26
- Wausau, WI Even
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.