| Ontario Rank | Board Rank | School | City | Type | Overall Score | 2023‑24 | 2022‑23 | 2021‑22 | 3‑Year Change | Website |
|---|---|---|---|---|---|---|---|---|---|---|
| 243 | 1 | École secondaire catholique Saint-Joseph | Wawa | Catholic | 7.3 | 7.3 | 4.5 | 9.4 | -2.1 ↓ | Visit |
| 279 | 2 | École secondaire catholique La Renaissance | Espanola | Catholic | 7.2 | 7.2 | 5.9 | 5.0 | +2.2 ↑ | — |
| 519 | 3 | Collège Notre-Dame | Sudbury | Catholic | 6.1 | 6.1 | 5.7 | 5.2 | +0.9 ↑ | Visit |
| 520 | 4 | École secondaire Notre-Dame-du-Sault | Sault Ste Marie | Catholic | 6.1 | 6.1 | 2.4 | 5.9 | +0.2 ↑ | Visit |
| 554 | 5 | École secondaire catholique l'Horizon | Val Caron | Catholic | 5.9 | 5.9 | 6.5 | 5.2 | +0.7 ↑ | Visit |
| 674 | 6 | École secondaire catholique Jeunesse-Nord | Blind River | Catholic | 5.0 | 5.0 | 6.6 | 5.0 | 0.0 → | Visit |
| 675 | 7 | École secondaire du Sacré-Coeur | Sudbury | Catholic | 5.0 | 5.0 | 5.3 | 5.6 | -0.6 ↓ | Visit |
| 688 | 8 | École secondaire catholique Champlain | Chelmsford | Catholic | 4.9 | 4.9 | 5.2 | 5.8 | -0.9 ↓ | Visit |
| 771 | 9 | École secondaire catholique Trillium | Chapleau | Catholic | 1.2 | 1.2 | 7.9 | 7.8 | -6.6 ↓ | Visit |
| 776 | 10 | Carrefour Options + | Sudbury | Catholic | — | — | — | — | — | Visit |