| 84 | 1 | Centennial Collegiate and Vocational Institute | Guelph | Public | 8.2 | 8.2 | 7.9 | 8.2 | 0.0 → | Visit |
| 108 | 2 | Guelph Collegiate and Vocational Institute | Guelph | Public | 8.1 | 8.1 | 8.2 | 8.0 | +0.1 ↑ | Visit |
| 109 | 3 | John F Ross Collegiate and Vocational Institute | Guelph | Public | 8.1 | 8.1 | 7.3 | 7.4 | +0.7 ↑ | Visit |
| 154 | 4 | Erin District High School | Erin | Public | 7.8 | 7.8 | 7.7 | 7.2 | +0.6 ↑ | Visit |
| 218 | 5 | Centre Wellington District High School | Fergus | Public | 7.5 | 7.5 | 7.5 | 6.9 | +0.6 ↑ | Visit |
| 395 | 6 | Norwell District Secondary School | Palmerston | Public | 6.7 | 6.7 | 5.6 | 5.6 | +1.1 ↑ | Visit |
| 404 | 7 | Wellington Heights Secondary School | Mount Forest | Public | 6.7 | 6.7 | 6.4 | 5.9 | +0.8 ↑ | Visit |
| 490 | 8 | Orangeville District Secondary School | Orangeville | Public | 6.3 | 6.3 | 6.2 | 6.2 | +0.1 ↑ | Visit |
| 516 | 9 | Westside Secondary School | Orangeville | Public | 6.2 | 6.2 | 6.0 | 6.4 | -0.2 ↓ | Visit |
| 559 | 10 | Centre Dufferin District High School | Shelburne | Public | 5.9 | 5.9 | 5.0 | 5.9 | 0.0 → | Visit |
| 766 | 11 | College Heights Secondary School | Guelph | Public | 1.8 | 1.8 | 4.1 | 2.5 | -0.7 ↓ | Visit |
| 850 | 12 | UGDSB Online Learning Program | Guelph | Public | — | — | — | — | — | Visit |
| 851 | 13 | Unnamed Secondary School | Guelph | Public | — | — | — | — | — | — |
| 898 | 14 | Dufferin Centre for Continuing Education | Orangeville | Public | — | — | — | — | — | Visit |
| 904 | 15 | Day School -Wellington Centre - ContEd | Guelph | Public | — | — | — | — | — | Visit |