Duquesne is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.
About 64% of adults in Duquesne typically vote, near the U.S. average of about 62%. Among adults in Duquesne, ~50% vote Democratic, ~14% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Duquesne compares
Among cities within 25 miles, Duquesne leans more Democratic than 261 of 266 neighbors.
Duquesne runs about 58 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Duquesne sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Duquesne. The southeast side is the most Democratic-leaning (D+72) and the southwest side is the least Democratic-leaning (D+43), a spread of about 29 points.
Why Duquesne 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 Duquesne, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 93% of residents in Duquesne live in densely developed areas, about 57 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 58% of adults in Duquesne have never been married, in the top fraction of cities. Duquesne 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; Duquesne, PA sits in the top tenth 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 Duquesne looks the way it does
Turnout in Duquesne 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
- East Pittsburgh, PA D+53
- West Mifflin, PA D+5
- North Versailles, PA D+5
- North Braddock, PA D+51
- Dravosburg, PA R+6
- Braddock, PA D+78
- Port Vue, PA R+13
- East McKeesport, PA D+10
- McKeesport, PA D+19
- Whitaker, PA D+10
Cities with Similar Populations
- Mayflower, AR R+50
- Isle Of Palms, SC R+14
- Mills, WY R+57
- Southgate, KY R+4
- Cutler, CA D+19
- Springhill, LA R+24
- Grand Saline, TX R+65
- King City, OR D+27
- Chinle, AZ D+61
- Corinth, NY R+28
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.