| Name | Cowlitz County |
| State | Washington |
| FIPS Code | 53015 |
| County Seat | Kelso |
| Timezone | Pacific Standard Time (PST) |
| Population (2022) | 102,138 |
| Population Growth Rate(2000-2022) | 8.12% |
| Majority Ethnicity | White 95.47% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Republican:+5 |
| Unemployment Rate (December 2024) | 4.9% |
| Area Code(s) | 360 / 564 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 95.47% |
| African American | 0.84% |
| Hispanic | 1.69% |
| Asian | 1.37% |
| Native American | 0.31% |
| Hawaiin/Pacific Islander | 0.31% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 71.41% |
| African American | 0.68% |
| Hispanic | 18.55% |
| Asian | 1.16% |
| Native American | 1.13% |
| Hawaiin/Pacific Islander | 1.12% |