| Ontario Rank | Board Rank | School | City | Type | Overall Score | 2023‑24 | 2022‑23 | 2021‑22 | 3‑Year Change | Website |
|---|---|---|---|---|---|---|---|---|---|---|
| 52 | 1 | Bishop Macdonell Catholic Secondary School | Guelph | Catholic | 8.5 | 8.5 | 8.3 | 7.9 | +0.6 ↑ | Visit |
| 470 | 2 | Our Lady of Lourdes Catholic School | Guelph | Catholic | 6.3 | 6.3 | 6.3 | 6.2 | +0.1 ↑ | Visit |
| 471 | 3 | St James Catholic School | Guelph | Catholic | 6.3 | 6.3 | 6.6 | 6.5 | -0.2 ↓ | Visit |
| 799 | 4 | St John Bosco Catholic School | Guelph | Catholic | — | — | — | — | — | Visit |
| 804 | 5 | Wellington Catholic Online School | Guelph | Catholic | — | — | — | — | — | — |