| Name | Whitman County |
| State | Washington |
| FIPS Code | 53075 |
| County Seat | Colfax |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2024) | 47,900 |
| Population Growth Rate(2020-2024) | -0.16% |
| Majority Ethnicity | White 80.98% |
| Public School Majority Ethnicity | White 74% |
| Partisan Voting Index | Democratic:+3 |
| Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 7.9% |
| Area Code(s) | 509 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 80.98% |
| African American | 1.72% |
| Hispanic | 8.49% |
| Asian | 7.85% |
| Native American | 0.78% |
| Hawaiin/Pacific Islander | 0.19% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 73.95% |
| African American | 2.28% |
| Hispanic | 12.06% |
| Asian | 4.47% |
| Native American | 0.94% |
| Hawaiin/Pacific Islander | 0.32% |