| Ontario Rank | Board Rank | School | Board | City | Type | Overall Score | 2023‑24 | 2022‑23 | 2021‑22 | 3‑Year Change | Website |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 3 | Unionville High School | York Region DSB | Unionville | Public | 9.0 | 9.0 | 8.9 | 9.0 | 0.0 → | Visit |
| 49 | 7 | Milliken Mills High School | York Region DSB | Unionville | Public | 8.6 | 8.6 | 8.8 | 8.6 | 0.0 → | Visit |
| 64 | 10 | Bill Crothers Secondary School | York Region DSB | Unionville | Public | 8.5 | 8.5 | 8.1 | 7.6 | +0.9 ↑ | Visit |