Michigan·MI·FIPS 26147

St Clair County

Voted Republican in 2024 · 96,524 votes cast

About St Clair County

St. Clair County is a county located in the U.S. state of Michigan and bordering the west bank of the St. Clair River. As of the 2020 census, the population was 160,383. It is the 13th-most populous county in the state. The county seat is Port Huron, located at the north end of the St. Clair River at Lake Huron. The county was created September 10, 1820, and its government was organized in 1821. It is located northeast of Detroit. It is considered by the State of Michigan to be a part of The Thumb, a peninsula that is surrounded by Lake Huron in the east-central area of the state. This area is sometimes dubbed the Blue Water Area.

2024 Presidential Results

All candidates · St Clair County, Michigan

Donald J Trump(Republican)

66.6%64,277

Won by 33,433 votes

Kamala D Harris(Democrat)

32.0%30,844

Other(Other)

1.1%1,024

Chase Oliver(Libertarian)

0.4%379

Margin History

Red = Republican, Blue = Democratic

2024R+34.6

2020R+30.2

2016R+31.4

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Swung Right in 2024

St Clair County shifted 4.4 points toward Republicans compared to 2020. Voter turnout increased by 4.8%.

St Clair County — Local Discussion

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What does St Clair County really think?

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