Illinois·IL·FIPS 17201

Winnebago County

Voted Democratic in 2024 · 121,347 votes cast

About Winnebago County

Winnebago County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 285,350 making it the seventh most populous county in Illinois behind Cook County and its five surrounding collar counties. Its county seat is Rockford. Winnebago County is the central county of the Rockford metropolitan area.

2024 Presidential Results

All candidates · Winnebago County, Illinois

Kamala D Harris(Democrat)

49.4%59,942

Won by 685 votes

Donald J Trump(Republican)

48.8%59,257

Other(Other)

1.7%2,114

Chase Oliver(Libertarian)

0.0%34

Margin History

Red = Republican, Blue = Democratic

2024D+0.6

2020D+2.5

2016D+0.1

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Swung Right in 2024

Winnebago County shifted 1.9 points toward Republicans compared to 2020. Voter turnout decreased by 5.0%.

Winnebago County — Local Discussion

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What does Winnebago County really think?

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