Illinois·IL·FIPS 17083

Jersey County

Voted Republican in 2024 · 11,694 votes cast

About Jersey County

Jersey County is a county located in the U.S. state of Illinois. At the 2020 census, it had a population of 21,512. The county seat and largest community is Jerseyville, with a population of 8,337 in 2010. The county's smallest incorporated community is Otterville, with a population of 87.

2024 Presidential Results

All candidates · Jersey County, Illinois

Donald J Trump(Republican)

74.3%8,684

Won by 5,868 votes

Kamala D Harris(Democrat)

24.1%2,816

Other(Other)

1.6%191

Chase Oliver(Libertarian)

0.0%3

Margin History

Red = Republican, Blue = Democratic

2024R+50.2

2020R+48.2

2016R+46.1

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Swung Right in 2024

Jersey County shifted 2.0 points toward Republicans compared to 2020. Voter turnout decreased by 2.0%.

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No one has claimed Jersey County yet

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Jersey County — Local Discussion

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What does Jersey County really think?

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