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Pennsylvania·PA·FIPS 42085
Mercer County
Voted Republican in 2024 · 58,410 votes cast
About Mercer County
Mercer County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 110,652. Its county seat is Mercer, and its largest city is Hermitage. The county is part of the Northwest Pennsylvania region of the state.
Read more on Wikipedia →Total Votes (2024)
58,410
Winner Margin
R+30.2
Turnout Change
+0.8%
2020→2024 Swing
R+4.1
2024 Presidential Results
All candidates · Mercer County, Pennsylvania
Donald J Trump(Republican)
129.3%75,522
Won by 35,232 votes
Kamala D Harris(Democrat)
69.0%40,290
Chase Oliver(Libertarian)
1.1%624
Other(Other)
0.7%384
Margin History
Red = Republican, Blue = Democratic
2024R+30.2
2020R+26.0
2016R+24.5
🔴
Swung Right in 2024
Mercer County shifted 4.1 points toward Republicans compared to 2020. Voter turnout increased by 0.8%.
What does Mercer County really think?
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Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)