Donald J. Trump won Marengo County with 51.6% of the vote, ahead of Kamala D. Harris. 9,682 votes were counted. The party margin was a Republican lead of 3.8 points. Compared with the previous presidential election in Marengo County that is loaded, the margin moved 5.1 points toward Republicans and the winning party changed.
Marengo County leans Republican by 2.5 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Marengo County voted for the winner of the national popular vote in 7 of 7 presidential elections from 2000 to 2024. On average its margin sat 2.2 points away from the national margin.
In 2024, 9,682 votes were cast in the biggest race, which is 61.8% of the 14,615 citizens aged 18 and over in Marengo County.
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