Montana·MT·FIPS 30069

Petroleum County

Voted Republican in 2024 · 324 votes cast

About Petroleum County

Petroleum County is a county in the U.S. state of Montana. As of the 2020 census, the population was 496, making it the least populous county in Montana and the eighth-least populous in the United States. Its county seat is Winnett. The county's area was partitioned from Fergus County in 1925 to become the last of Montana's 56 counties to be organized.

2024 Presidential Results

All candidates · Petroleum County, Montana

Donald J Trump(Republican)

87.7%284

Won by 247 votes

Kamala D Harris(Democrat)

11.4%37

Other(Other)

0.6%2

Chase Oliver(Libertarian)

0.3%1

Margin History

Red = Republican, Blue = Democratic

2024R+76.2

2020R+74.4

2016R+77.0

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Swung Right in 2024

Petroleum County shifted 1.8 points toward Republicans compared to 2020. Voter turnout decreased by 6.9%.

Petroleum County — Local Discussion

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What does Petroleum County really think?

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