Voter file loaded June 9, 2026 · figures are from that file, held as a fixed record
Walla Walla County, Washington has 38,867 active registered voters across 61 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 Walla Walla County voted for president
Election results are public records.
Walla Walla County at a glance.
Walla Walla County had an estimated 62,068 residents in July 2024, the 21st most populous of Washington's 39 counties, down 0.8% since the 2020 census. Of those, 49,576 are 18 or older, the voting-age population, and 20.6% are 65 or older. Its 38,867 active registered voters equal about 78.4% of that voting-age population.
It covers 1,270 square miles of land (49 people per square mile), and 27.0% of residents live outside any incorporated city or town. The largest cities and towns are Walla Walla (33,901), College Place (9,846), Waitsburg (1,173) and Prescott (364). The American Community Survey (2020-2024) puts it at a median age of 38.5, a median household income of $74,202, 29.8% of adults 25 and older holding a bachelor's degree or higher and 65.0% of occupied homes owned by the people living in them.
In 2024, 29,373 votes were cast for president, about 59.2% of the voting-age population; the Democratic ticket took 44.6% and the Republican ticket 52.7%. The two-party margin moved from R+16.6 in 2008 to R+8.1 in 2024.
- Population (2024 estimate)
- 62,068
- Population (2020 census base)
- 62,587
- Voting-age population (18+)
- 49,576
- Active voters per 100 adults
- 78.4
- Residents 65 and older
- 20.6%
- People per square mile
- 49
- Living outside incorporated places
- 27.0%
- Land area
- 1,270 sq mi
- Median age
- 38.5
- Median household income
- $74,202
- Adults 25+ with a bachelor's degree
- 29.8%
- Owner-occupied homes
- 65.0%
Largest cities and towns
- Walla Walla 33,901
- College Place 9,846
- Waitsburg 1,173
- Prescott 364
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 44.6% | 52.7% | R+8.1 | 29,373 |
| 2020 | 43.8% | 52.5% | R+8.7 | 31,261 |
| 2016 | 38.3% | 54.6% | R+16.3 | 19,718 |
| 2012 | 37.7% | 60.0% | R+22.3 | 15,155 |
| 2008 | 40.8% | 57.4% | R+16.6 | 24,727 |
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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