Whitman County's estimated 2025 population is 48,878 with a growth rate of 0.89% in the past year according to the most recent United States census data. Whitman County is the 23rd largest county in Washington. The 2010 population was 44,795 and has seen a growth of 9.11% since that time.
Data after 2023 is projected based on recent change
The racial composition of Whitman County includes 76.71% White, 7.43% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Two or more races
Asian
Other race
Black or African American
Native American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 36,086 | 76.71% |
| Two or more races | 5,000 | 10.63% |
| Asian | 3,496 | 7.43% |
| Other race | 1,262 | 2.68% |
| Black or African American | 766 | 1.63% |
| Native American | 346 | 0.74% |
| Native Hawaiian or Pacific Islander | 86 | 0.18% |
Married
Widowed
Divorced
Separated
Never Married
Whitman County's average per capita income is $47,263. Household income levels show a median of $52,893. The poverty rate stands at 23.69%.
Name | Median | Mean |
|---|---|---|
| Married Families | $99,567 | - |
| Families | $91,032 | $111,903 |
| Households | $52,893 | $78,956 |
| Non Families | $26,629 | $44,361 |
Average Income
Median Household Income
Poverty Rate