Oklahoma·OK·FIPS 40147

Washington County

Voted Republican in 2024 · 23,174 votes cast

About Washington County

Washington County is a county located in the northeastern part of the U.S. state of Oklahoma. As of the 2020 census, the population was 52,455. Its county seat is Bartlesville. Named for President George Washington, it is the smallest county in Oklahoma in total area, adjacent to the largest county in Oklahoma, Osage County. Washington County comprises the Bartlesville, OK micropolitan statistical area, which is also included in the Tulsa-Muskogee-Bartlesville, OK combined statistical area. It is located along the border with Kansas.

2024 Presidential Results

All candidates · Washington County, Oklahoma

Donald J Trump(Republican)

145.3%33,672

Won by 22,086 votes

Kamala D Harris(Democrat)

50.0%11,586

Other(Other)

3.3%762

Chase Oliver(Libertarian)

1.4%328

Margin History

Red = Republican, Blue = Democratic

2024R+47.7

2020R+48.0

2016R+48.5

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Swung Left in 2024

Washington County shifted 0.4 points toward Democrats compared to 2020. Voter turnout decreased by 1.4%.

Washington County — Local Discussion

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What does Washington County really think?

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