Clairton leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 72% of adults in Clairton typically vote, above the U.S. average of about 62%. Among adults in Clairton, ~50% vote Democratic, ~22% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Clairton compares
Among cities within 25 miles, Clairton leans more Democratic than 256 of 268 neighbors.
Clairton runs about 43 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Clairton sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Clairton. The southeast side is the most Democratic-leaning (D+77) and the north side is the least Democratic-leaning (D+9), a spread of about 68 points.
Why Clairton 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 Clairton, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 89% of residents in Clairton live in densely developed areas, about 52 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 39% of adults in Clairton have never been married, above 93% of cities. Clairton runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Clairton, PA sits in the top tenth nationally on this measure.
Why turnout in Clairton looks the way it does
Turnout in Clairton 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
- West Elizabeth, PA R+25
- Lincoln, PA R+40
- Glassport, PA R+3
- Jefferson Hills, PA R+20
- Elizabeth, PA R+27
- Port Vue, PA R+13
- Versailles, PA Even
- Elrama, PA R+37
- McKeesport, PA D+19
- Dravosburg, PA R+6
Cities with Similar Populations
- Magnolia, NJ D+13
- Grand Island, FL R+43
- Wrightsville, GA R+26
- Washington, WV R+51
- Orleans, MA D+38
- Voorheesville, NY D+10
- Kiel, WI R+41
- Shrewsbury, PA R+16
- Seville, OH R+38
- Towaco, NJ R+16
All Local Stats
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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.