| District Name | Timber Lake School District 20-3 |
| State | South Dakota |
| County | Dewey County Corson County Ziebach County |
| Total Students (2021) | 357 |
| District Growth Rate (2017-21) | -0.6% |
| Majority Race/Ethnicty | Native American (52.7%) |
| Free/Reduced Lunch Program | 30.53% |