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.

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

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Swung Right in 2024

Mercer County shifted 4.1 points toward Republicans compared to 2020. Voter turnout increased by 0.8%.

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No one has claimed Mercer County yet

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Mercer County — Local Discussion

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What does Mercer County really think?

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Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)