Donald J. Trump won Dubuque County with 53.5% of the vote, ahead of Kamala D. Harris. 52,770 votes were counted. The party margin was a Republican lead of 8.6 points. Compared with the previous presidential election in Dubuque County that is loaded, the margin moved 5.4 points toward Republicans.
Dubuque County leans Republican by 7.3 points compared with the nation (our partisan lean index, based on president 2024 75% + 2020 25%).
Dubuque 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 10.6 points away from the national margin.
In 2024, 52,770 votes were cast in the biggest race, which is 71.1% of the 74,650 citizens aged 18 and over in Dubuque County.
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