North Dakota·ND·FIPS 38105

Williams County

Voted Republican in 2024 · 15,122 votes cast

About Williams County

Williams County is located on the western border of the U.S. state of North Dakota, next to Montana. As of the 2020 census, the population was 40,950, and was estimated to be 41,767 in 2025, making it the fifth-most populous county in North Dakota. The county seat and the largest city is Williston.

2024 Presidential Results

All candidates · Williams County, North Dakota

Donald J Trump(Republican)

82.7%12,501

Won by 10,225 votes

Kamala D Harris(Democrat)

15.1%2,276

Chase Oliver(Libertarian)

1.5%233

Other(Other)

0.7%112

Margin History

Red = Republican, Blue = Democratic

2024R+67.6

2020R+66.8

2016R+65.1

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Swung Right in 2024

Williams County shifted 0.9 points toward Republicans compared to 2020. Voter turnout increased by 5.5%.

Williams County — Local Discussion

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What does Williams County really think?

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