← Back to Battleground Map
Illinois·IL·FIPS 17087
Johnson County
Voted Republican in 2024 · 6,103 votes cast
About Johnson County
Johnson County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 13,308. Its county seat is Vienna. It is located in the southern portion of Illinois known locally as "Little Egypt".
Read more on Wikipedia →Total Votes (2024)
6,103
Winner Margin
R+58.3
Turnout Change
-5.2%
2020→2024 Swing
D+0.4
2024 Presidential Results
All candidates · Johnson County, Illinois
Donald J Trump(Republican)
78.6%4,798
Won by 3,557 votes
Kamala D Harris(Democrat)
20.3%1,241
Other(Other)
1.0%64
Chase Oliver(Libertarian)
0.0%0
Margin History
Red = Republican, Blue = Democratic
2024R+58.3
2020R+58.7
2016R+57.6
🔵
Swung Left in 2024
Johnson County shifted 0.4 points toward Democrats compared to 2020. Voter turnout decreased by 5.2%.
What does Johnson 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)