| District Name | Southside School District |
| State | Washington |
| County | Mason County |
| Statistical Area | Shelton, WA |
| Cities/Towns | |
| Total Students (2021) | 203 |
| District Growth Rate (2017-21) | -6.5% |
| Majority Race/Ethnicty | White (70.9%) |
| Free/Reduced Lunch Program | 34.98% |