Rankings · Iowa
Largest schools in O'Brien County, Iowa
Ranked by enrollment — academic rankings appear once test-score data is loaded.
| # | School | City | District | Enrollment |
|---|---|---|---|---|
| 1 | East Elementary School | Sheldon | Sheldon Comm School District | 435 |
| 2 | Sheldon High School | Sheldon | Sheldon Comm School District | 368 |
| 3 | Sheldon Middle School | Sheldon | Sheldon Comm School District | 349 |
| 4 | South O'Brien Elem Sch Primghar Center | Primghar | South O'Brien Comm School District | 306 |
| 5 | South O'Brien Secondary School | Paullina | South O'Brien Comm School District | 273 |
| 6 | Hartley-Melvin-Sanborn Elementary School | Hartley | Hartley-Melvin-Sanborn Comm School District | 219 |
| 7 | Hartley-Melvin-Sanborn High School | Hartley | Hartley-Melvin-Sanborn Comm School District | 193 |
| 8 | Hartley-Melvin-Sanborn Middle School | Sanborn | Hartley-Melvin-Sanborn Comm School District | 187 |