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Benton County, Washington

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137,692
Active registered voters
240
Precincts
5
Presidential cycles of results

Voter file loaded June 5, 2026 · figures are from that file, held as a fixed record

Benton County, Washington has 137,692 active registered voters across 240 precincts, as of July 2026.

Party registration

Washington doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.

How Benton County voted for president

36.1
62.2
2008
35.3
62.3
2012
32.7
59.3
2016
37.6
58.6
2020
37.7
59.6
2024
■ Democratic %   ■ Republican %  ·  2024 total votes cast: 99,947

Election results are public records.

Source:  Official county canvasses via MIT Election Data + Science Lab

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Also see: Motion51 in Washington · How to run for office in Benton County · Pricing