Donald J. Trump won Barnwell County with 57.2% of the vote, ahead of Kamala D. Harris. 9,803 votes were counted. The party margin was a Republican lead of 15.5 points. Compared with the previous presidential election in Barnwell County that is loaded, the margin moved 8.1 points toward Republicans.
Barnwell County leans Republican by 13.7 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Barnwell County voted for the winner of the national popular vote in 4 of 7 presidential elections from 2000 to 2024. On average its margin sat 8.1 points away from the national margin.
In 2024, 9,803 votes were cast in the biggest race, which is 63.1% of the 15,525 citizens aged 18 and over in Barnwell County.
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