How many people live in Walla Walla County, WA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 62,100 people living in Walla Walla County, WA. That makes Walla Walla County the 21st-most populous county in Washington. It is home to 0.78% of people living in the state.
62.1K
population of Walla Walla County, WA (2024)
0.78%
County share of the Washington population (2024)
About 62,100 people lived in Walla Walla County, WA in 2024.
Population estimates, 2000–2024
What are Walla Walla County, WA’s age demographics?
About 12,800 Walla Walla County, WA residents are aged 65 and older in 2024. That represents 20.6% of its population. For comparison, the age group represents 17.4% of Washington’s population and 18% in the US overall.
Another 12,500 Walla Walla County residents, or 20.1% of the population, were children under 18. For comparison, the age group represents 20.9% of Washington’s population and 21.6% in the US overall.
A higher share of Walla Walla County, WA's population is aged 18–24 than the US as a whole.
Population estimates by age group, (2024)
What are Walla Walla County, WA’s racial and ethnic demographics?
Non-Hispanic white residents make up 67.9% of the Walla Walla County, WA population, higher than the national share of 57.5%. Walla Walla County, WA also has a larger share of people identifying as Hispanic (24.9%) than the US overall (20%).
In contrast, Walla Walla County’s non-Hispanic Black or African American population accounts for 1.8%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 1.9% of the county, compared with 6.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Walla Walla County, WA has a higher share of a Hispanic population than Washington as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Walla Walla County, WA is Walla Walla with about 33,900 residents in 2024.
Cities and towns in Walla Walla County, WA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Walla Walla | 33,901 |
| 2. | College Place | 9,846 |
| 3. | Waitsburg | 1,173 |
| 4. | Prescott | 364 |
| 5. | Balance of Walla Walla County | 16,784 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
