| District Name | Mossyrock School District |
| State | Washington |
| County | Lewis County |
| Statistical Area | Centralia, WA |
| Cities/Towns | Mossyrock |
| Total Students (2021) | 546 |
| District Growth Rate (2017-21) | 3.8% |
| Majority Race/Ethnicty | White (72.7%) |
| Free/Reduced Lunch Program | 55.31% |