Whitman County's estimated 2026 population is 49,161 with a growth rate of 1.34% in the past year according to the most recent United States census data. Whitman County is the 24th largest county in Washington. The 2010 population was 44,795 and has seen a growth of 9.75% since that time.
Data after 2023 is projected based on recent change
Overall: 26.4 years
Female: 25.9 years
Male: 26.9 years
There are 39,564 adults, (5,597 of whom are seniors) in Whitman County.
Female: 23,281 (49.5%)
Male: 23,722 (50.5%)
The racial composition of Whitman County includes 76.16% White, 6.87% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 35,796 | 76.16% |
| Two or more races | 5,610 | 11.94% |
| Asian | 3,228 | 6.87% |
| Other race | 1,292 | 2.75% |
| Black or African American | 685 | 1.46% |
| Native American | 298 | 0.63% |
| Native Hawaiian or Pacific Islander | 94 | 0.2% |
Whitman County's average per capita income is $50,799. Household income levels show a median of $55,406. The poverty rate stands at 22.66%.
Name | Median | Mean |
|---|---|---|
| Married Families | $114,451 | $135,132 |
| Families | $97,805 | $119,087 |
| Households | $55,406 | $84,165 |
| Non Families | $27,835 | $47,251 |
Average Income
Median Household Income
Poverty Rate