| District Name | Agar-Blunt-Onida School District 58-3 |
| State | South Dakota |
| County | Sully County Hughes County |
| Statistical Area | Pierre, SD |
| Total Students (2021) | 268 |
| District Growth Rate (2017-21) | 7.2% |
| Majority Race/Ethnicty | White (82.5%) |
| Free/Reduced Lunch Program | 24.25% |