Donald J. Trump won Iosco County with 64.6% of the vote, ahead of Kamala D. Harris. 15,731 votes were counted. The party margin was a Republican lead of 30.6 points. Compared with the previous presidential election in Iosco County that is loaded, the margin moved 2.0 points toward Republicans.
Iosco County leans Republican by 30.5 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Iosco 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 15.9 points away from the national margin.
In 2024, 15,731 votes were cast in the biggest race, which is 75.3% of the 20,880 citizens aged 18 and over in Iosco County.
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