Voter file loaded June 4, 2026 · figures are from that file, held as a fixed record
Asotin County, Washington has 15,096 active registered voters across 26 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 Asotin County voted for president
Election results are public records.
Asotin County at a glance.
Asotin County had an estimated 22,523 residents in July 2024, the 30th most populous of Washington's 39 counties, up 1.1% since the 2020 census. Of those, 18,167 are 18 or older, the voting-age population, and 26.6% are 65 or older. Its 15,096 active registered voters equal about 83.1% of that voting-age population.
It covers 636 square miles of land (35 people per square mile), and 63.0% of residents live outside any incorporated city or town. The largest cities and towns are Clarkston (7,138) and Asotin (1,192). The American Community Survey (2020-2024) puts it at a median age of 46.2, a median household income of $72,283, 24.7% of adults 25 and older holding a bachelor's degree or higher and 73.2% of occupied homes owned by the people living in them.
In 2024, 11,396 votes were cast for president, about 62.7% of the voting-age population; the Democratic ticket took 35.8% and the Republican ticket 61.5%. The two-party margin moved from R+13.4 in 2008 to R+25.7 in 2024.
- Population (2024 estimate)
- 22,523
- Population (2020 census base)
- 22,288
- Voting-age population (18+)
- 18,167
- Active voters per 100 adults
- 83.1
- Residents 65 and older
- 26.6%
- People per square mile
- 35
- Living outside incorporated places
- 63.0%
- Land area
- 636 sq mi
- Median age
- 46.2
- Median household income
- $72,283
- Adults 25+ with a bachelor's degree
- 24.7%
- Owner-occupied homes
- 73.2%
Largest cities and towns
- Clarkston 7,138
- Asotin 1,192
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 35.8% | 61.5% | R+25.7 | 11,396 |
| 2020 | 35.6% | 61.2% | R+25.6 | 11,951 |
| 2016 | 32.2% | 59.0% | R+26.8 | 9,684 |
| 2012 | 40.4% | 57.1% | R+16.7 | 9,883 |
| 2008 | 42.3% | 55.7% | R+13.4 | 9,780 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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