Donald J. Trump won St. Clair County with 66.6% of the vote, ahead of Kamala D. Harris. 96,524 votes were counted. The party margin was a Republican lead of 34.6 points. Compared with the previous presidential election in St. Clair County that is loaded, the margin moved 4.4 points toward Republicans.
St. Clair County leans Republican by 34.0 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 3 of 7 presidential elections from 2000 to 2024. On average its margin sat 18.2 points away from the national margin.
In 2024, 96,524 votes were cast in the biggest race, which is 76.7% of the 125,930 citizens aged 18 and over in St. Clair County.
More: US election results, counties and cities, housing market.