| District Name | Mehlville R-IX School District |
| State | Missouri |
| County | Saint Louis County |
| Statistical Area | St. Louis, MO-IL |
| Total Students (2021) | 9969 |
| District Growth Rate (2017-21) | -5.3% |
| Majority Race/Ethnicty | White (79.7%) |
| Free/Reduced Lunch Program | 28.03% |