Donald J. Trump won Collin County with 54.2% of the vote, ahead of Kamala D. Harris. 515,585 votes were counted. The party margin was a Republican lead of 11.1 points. Compared with the previous presidential election in Collin County that is loaded, the margin moved 6.8 points toward Republicans.
Collin County leans Republican by 9.7 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Collin 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 28.4 points away from the national margin.
In 2024, 515,585 votes were cast in the biggest race, which is 71.0% of the 726,235 citizens aged 18 and over in Collin County.
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