Asotin County's 2026 population is estimated at 22,549, reflecting a 0.06% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Asotin County is the 30th largest county in Washington. The 2010 population was 21,725 and has grown 3.79% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.2 years
Female: 47.7 years
Male: 44.8 years
There are 18,067 adults, (5,661 of whom are seniors) in Asotin County.
Female: 11,427 (50.9%)
Male: 11,040 (49.1%)
The racial composition of Asotin County includes 88.2% White, and smaller percentages for other race, Asian, Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19,815 | 88.2% |
| Two or more races | 1,560 | 6.94% |
| Other race | 372 | 1.66% |
| Asian | 256 | 1.14% |
| Native American | 254 | 1.13% |
| Black or African American | 210 | 0.93% |
Asotin County 's average per capita income is $47,300. Household income levels show a median of $72,283. The poverty rate stands at 14.16%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $100,817 | - |
| Families | $87,323 | $109,891 |
| Households | $72,283 | $95,275 |
| Non Families | $45,786 | $67,127 |
Average Income
Median Household Income
Poverty Rate