Donald J. Trump won St. Clair County with 79.8% of the vote, ahead of Kamala D. Harris. 4,990 votes were counted. The party margin was a Republican lead of 60.6 points. Compared with the previous presidential election in St. Clair County that is loaded, the margin moved 1.4 points toward Republicans.
St. Clair County leans Republican by 60.9 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
St. Clair County voted for the winner of the national popular vote in 2 of 7 presidential elections from 2000 to 2024. On average its margin sat 42.1 points away from the national margin.
In 2024, 4,990 votes were cast in the biggest race, which is 67.4% of the 7,405 citizens aged 18 and over in St. Clair County.
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