Kamala D. Harris won Mercer County with 65.9% of the vote, ahead of Donald J. Trump. 163,270 votes were counted. The party margin was a Democratic lead of 33.9 points. Compared with the previous presidential election in Mercer County that is loaded, the margin moved 6.3 points toward Republicans.
Mercer County leans Democratic by 36.1 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Mercer 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 32.2 points away from the national margin.
In 2024, 163,270 votes were cast in the biggest race, which is 64.2% of the 254,445 citizens aged 18 and over in Mercer County.
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