Washington·WA·FIPS 53013

Columbia County

Voted Republican in 2024 · 2,485 votes cast

About Columbia County

Columbia County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 3,952, making it the second-least populous county in Washington. The county seat and largest city is Dayton. The county was created out of Walla Walla County on November 11, 1875, and is named after the Columbia River. Columbia County is included in the Walla Walla, WA Metropolitan Statistical Area.

2024 Presidential Results

All candidates · Columbia County, Washington

Donald J Trump(Republican)

69.9%1,737

Won by 1,076 votes

Kamala D Harris(Democrat)

26.6%661

Other(Other)

3.2%79

Chase Oliver(Libertarian)

0.3%8

Margin History

Red = Republican, Blue = Democratic

2024R+43.3

2020R+43.5

2016R+44.5

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Swung Left in 2024

Columbia County shifted 0.2 points toward Democrats compared to 2020. Voter turnout decreased by 0.4%.

Columbia County — Local Discussion

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What does Columbia County really think?

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