| Ontario Rank | Board Rank | School | City | Type | Overall Score | 2023‑24 | 2022‑23 | 2021‑22 | 3‑Year Change | Website |
|---|---|---|---|---|---|---|---|---|---|---|
| 212 | 1 | St. Mary Catholic Learning Centre Day | Brantford | Catholic | 7.5 | — | 7.5 | — | — | Visit |
| 274 | 2 | Assumption College School High School | Brantford | Catholic | 7.2 | 7.2 | 7.0 | 7.1 | +0.1 ↑ | Visit |
| 277 | 3 | St John's College | Brantford | Catholic | 7.2 | 7.2 | 7.5 | 7.5 | -0.3 ↓ | Visit |
| 433 | 4 | Holy Trinity Catholic High School | Simcoe | Catholic | 6.5 | 6.5 | 6.5 | 6.0 | +0.5 ↑ | Visit |
| 780 | 5 | St. Mary Catholic Learning Centre | Brantford | Catholic | — | — | — | — | — | Visit |