| 22 | 1 | St Vincent de Paul Catholic Elementary School | Niagara Falls | Catholic | 9.6 | 9.6 | 9.6 | 8.9 | +0.7 ↑ | Visit |
| 42 | 2 | St Edward Catholic Elementary School | Jordan | Catholic | 9.5 | 9.5 | 8.6 | 5.9 | +3.6 ↑ | Visit |
| 72 | 3 | Our Lady of Fatima Catholic Elementary School | St Catharines | Catholic | 9.3 | 9.3 | 7.3 | 7.0 | +2.3 ↑ | Visit |
| 141 | 4 | Father Hennepin Catholic Elementary School | Niagara Falls | Catholic | 9.0 | 9.0 | 8.9 | 8.2 | +0.8 ↑ | Visit |
| 277 | 5 | St Michael Catholic Elementary School | Niagara-on-the-Lake | Catholic | 8.7 | 8.7 | 8.3 | 8.3 | +0.4 ↑ | Visit |
| 323 | 6 | St Joseph Catholic Elementary School | Grimsby | Catholic | 8.6 | 8.6 | 7.4 | 7.7 | +0.9 ↑ | Visit |
| 484 | 7 | St Ann Catholic Elementary School | St Catharines | Catholic | 8.3 | 8.3 | 8.0 | 8.0 | +0.3 ↑ | Visit |
| 560 | 8 | Loretto Catholic Elementary School | Niagara Falls | Catholic | 8.2 | 8.2 | 7.6 | 6.6 | +1.6 ↑ | Visit |
| 562 | 9 | Mary Ward Catholic Elementary School | Niagara Falls | Catholic | 8.2 | 8.2 | 8.3 | 7.2 | +1.0 ↑ | Visit |
| 625 | 10 | Notre Dame Catholic Elementary School | Niagara Falls | Catholic | 8.1 | 8.1 | 6.7 | 4.8 | +3.3 ↑ | Visit |
| 692 | 11 | Holy Name Catholic Elementary School | Welland | Catholic | 8.0 | 8.0 | 7.0 | 7.9 | +0.1 ↑ | Visit |
| 708 | 12 | St Mary Catholic Elementary School | Niagara Falls | Catholic | 8.0 | 8.0 | 8.3 | 7.8 | +0.2 ↑ | Visit |
| 710 | 13 | St Patrick Catholic Elementary School | Port Colborne | Catholic | 8.0 | 8.0 | 7.6 | 7.4 | +0.6 ↑ | Visit |
| 777 | 14 | Our Lady of Fatima Catholic Elementary School | Grimsby | Catholic | 7.9 | 7.9 | 7.0 | 6.7 | +1.2 ↑ | Visit |
| 785 | 15 | St Alexander Catholic Elementary School | Fonthill | Catholic | 7.9 | 7.9 | 8.4 | 7.6 | +0.3 ↑ | Visit |
| 865 | 16 | St John Henry Newman Catholic Elementary School | Niagara Falls | Catholic | 7.8 | 7.8 | 7.6 | 7.8 | 0.0 → | Visit |
| 989 | 17 | St John Catholic Elementary School | Beamsville | Catholic | 7.7 | 7.7 | 8.6 | 7.6 | +0.1 ↑ | Visit |
| 992 | 18 | St Kevin Catholic Elementary School | Welland | Catholic | 7.7 | 7.7 | 7.9 | 6.1 | +1.6 ↑ | Visit |
| 1076 | 19 | St Mark Catholic Elementary School | Beamsville | Catholic | 7.6 | 7.6 | 8.0 | 7.3 | +0.3 ↑ | Visit |
| 1081 | 20 | St Peter Catholic Elementary School | St Catharines | Catholic | 7.6 | 7.6 | 7.5 | 7.7 | -0.1 ↓ | Visit |
| 1083 | 21 | St Philomena Catholic Elementary School | Fort Erie | Catholic | 7.6 | 7.6 | 6.2 | 6.1 | +1.5 ↑ | Visit |
| 1194 | 22 | St Andrew Catholic Elementary School | Welland | Catholic | 7.5 | 7.5 | 7.4 | 6.0 | +1.5 ↑ | Visit |
| 1197 | 23 | Our Lady of the Holy Rosary Catholic Elementary School | Thorold | Catholic | 7.5 | 7.5 | 6.9 | 6.6 | +0.9 ↑ | Visit |
| 1279 | 24 | St Therese Catholic Elementary School | Port Colborne | Catholic | 7.4 | 7.4 | 7.6 | 5.0 | +2.4 ↑ | Visit |
| 1392 | 25 | St Martin Catholic Elementary School | Smithville | Catholic | 7.3 | 7.3 | 7.7 | 7.3 | 0.0 → | Visit |
| 1494 | 26 | St Patrick Catholic Elementary School | Niagara Falls | Catholic | 7.2 | 7.2 | 8.1 | 5.5 | +1.7 ↑ | Visit |
| 1713 | 27 | St Anthony Catholic Elementary School | St Catharines | Catholic | 7.0 | 7.0 | 7.1 | 7.0 | 0.0 → | Visit |
| 1724 | 28 | St Mary Catholic Elementary School | Welland | Catholic | 7.0 | 7.0 | 4.4 | 3.8 | +3.2 ↑ | Visit |
| 1893 | 29 | Our Lady of Mount Carmel Catholic Elementary School | Niagara Falls | Catholic | 6.8 | 6.8 | 6.3 | 6.9 | -0.1 ↓ | Visit |
| 1909 | 30 | St Ann Catholic Elementary School | Fenwick | Catholic | 6.8 | 6.8 | 6.2 | 9.4 | -2.6 ↓ | Visit |
| 1924 | 31 | St Theresa Catholic Elementary School | St Catharines | Catholic | 6.8 | 6.8 | 8.0 | 7.9 | -1.1 ↓ | Visit |
| 2039 | 32 | St James Catholic Elementary School | St Catharines | Catholic | 6.7 | 6.7 | 8.3 | 8.2 | -1.5 ↓ | Visit |
| 2130 | 33 | Alexander Kuska KSG Catholic Elementary School | Welland | Catholic | 6.6 | 6.6 | 6.3 | 6.6 | 0.0 → | Visit |
| 2131 | 34 | Canadian Martyrs Catholic Elementary School | St Catharines | Catholic | 6.6 | 6.6 | 7.4 | 6.7 | -0.1 ↓ | Visit |
| 2243 | 35 | Sacred Heart Catholic Elementary School | Niagara Falls | Catholic | 6.5 | 6.5 | 8.6 | 7.4 | -0.9 ↓ | Visit |
| 2250 | 36 | St Joseph Catholic Elementary School | Stevensville | Catholic | 6.5 | 6.5 | 6.1 | 5.5 | +1.0 ↑ | Visit |
| 2325 | 37 | St Elizabeth Catholic Elementary School | Wainfleet | Catholic | 6.4 | 6.4 | — | 5.7 | +0.7 ↑ | Visit |
| 2495 | 38 | St George Catholic Elementary School | Crystal Beach | Catholic | 6.2 | 6.2 | 5.8 | 5.9 | +0.3 ↑ | Visit |
| 2577 | 39 | Our Lady of Victory Catholic Elementary School | Fort Erie | Catholic | 6.1 | 6.1 | 6.8 | 5.9 | +0.2 ↑ | Visit |
| 2582 | 40 | St Denis Catholic Elementary School | St Catharines | Catholic | 6.1 | 6.1 | 7.1 | 7.2 | -1.1 ↓ | Visit |
| 2641 | 41 | Assumption Catholic Elementary School | St Catharines | Catholic | 6.0 | 6.0 | 7.2 | 7.5 | -1.5 ↓ | Visit |
| 2736 | 42 | St Alfred Catholic Elementary School | St Catharines | Catholic | 5.9 | 5.9 | 8.2 | 9.0 | -3.1 ↓ | Visit |
| 2741 | 43 | St Gabriel Lalemant Catholic Elementary School | Niagara Falls | Catholic | 5.9 | 5.9 | 6.8 | 7.2 | -1.3 ↓ | Visit |
| 2967 | 44 | St Nicholas Catholic Elementary School | St Catharines | Catholic | 5.6 | 5.6 | 5.5 | 6.9 | -1.3 ↓ | Visit |
| 3112 | 45 | St Teresa of Calcutta Catholic Elementary School | St. Catharines | Catholic | 5.3 | 5.3 | 6.8 | 6.5 | -1.2 ↓ | Visit |
| 3177 | 46 | St Augustine Catholic Elementary School | Welland | Catholic | 5.2 | 5.2 | 3.9 | 2.6 | +2.6 ↑ | Visit |
| 3338 | 47 | St John Bosco Catholic Elementary School | Port Colborne | Catholic | 4.8 | 4.8 | 6.7 | 4.9 | -0.1 ↓ | Visit |
| 3459 | 48 | St Christopher Catholic Elementary School | St Catharines | Catholic | 4.4 | 4.4 | 4.4 | 4.2 | +0.2 ↑ | Visit |
| 3960 | 49 | St Charles Catholic Elementary School | Thorold | — | — | — | — | — | — | — |
| 4019 | 50 | St Kateri Tekakwitha Catholic Elementary School | Thorold | Catholic | — | — | — | — | — | Visit |
| 4049 | 51 | Pope Francis Catholic Elementary School | Thorold | Catholic | — | — | — | — | — | Visit |