Kamala D. Harris won Allegheny County with 59.7% of the vote, ahead of Donald J. Trump. 720,504 votes were counted. The party margin was a Democratic lead of 20.3 points. Compared with the previous presidential election in Allegheny County that is loaded, the margin moved 0.1 points toward Republicans.
Allegheny County leans Democratic by 20.5 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Allegheny County voted for the winner of the national popular vote in 5 of 7 presidential elections from 2000 to 2024. On average its margin sat 15.1 points away from the national margin.
In 2024, 720,504 votes were cast in the biggest race, which is 74.0% of the 972,965 citizens aged 18 and over in Allegheny County.
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