Donald J. Trump won Gallatin County with 76.0% of the vote, ahead of Kamala D. Harris. 2,530 votes were counted. The party margin was a Republican lead of 53.8 points. Compared with the previous presidential election in Gallatin County that is loaded, the margin moved 1.6 points toward Republicans.
Gallatin County leans Republican by 54.4 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Gallatin 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 28.5 points away from the national margin.
In 2024, 2,530 votes were cast in the biggest race, which is 65.1% of the 3,885 citizens aged 18 and over in Gallatin County.
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