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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.
Read more on Wikipedia →Total Votes (2024)
11,694
Winner Margin
R+50.2
Turnout Change
-2.0%
2020→2024 Swing
R+2.0
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
🔴
Swung Right in 2024
Jersey County shifted 2.0 points toward Republicans compared to 2020. Voter turnout decreased by 2.0%.
What does Jersey County really think?
Elections happen once every 4 years. On constitution.vote, your voice is heard every day. Join the assembly and vote on the issues that matter to Illinois.
Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)