Kamala D. Harris won New Castle County with 65.5% of the vote, ahead of Donald J. Trump. 275,917 votes were counted. The party margin was a Democratic lead of 32.6 points. Compared with the previous presidential election in New Castle County that is loaded, the margin moved 4.5 points toward Republicans.
New Castle County leans Democratic by 34.2 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
New Castle 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 29.8 points away from the national margin.
In 2024, 275,917 votes were cast in the biggest race, which is 65.5% of the 421,525 citizens aged 18 and over in New Castle County.
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