| 43 | 1 | St Justin Martyr Catholic Elementary School | Unionville | Catholic | 9.5 | 9.5 | 9.8 | 9.4 | +0.1 ↑ | Visit |
| 54 | 2 | St Agnes of Assisi Catholic Elementary School | Woodbridge | Catholic | 9.4 | 9.4 | 8.0 | 7.9 | +1.5 ↑ | Visit |
| 137 | 3 | All Saints Catholic Elementary School | Unionville | Catholic | 9.0 | 9.0 | 8.7 | 8.7 | +0.3 ↑ | Visit |
| 138 | 4 | St Giovanni Battista Scalabrini Catholic Elementary School | Thornhill | Catholic | 9.0 | 9.0 | 7.9 | 8.1 | +0.9 ↑ | Visit |
| 139 | 5 | Christ the King Catholic Elementary School | Richmond Hill | Catholic | 9.0 | 9.0 | 8.7 | 9.1 | -0.1 ↓ | Visit |
| 145 | 6 | St Joseph Catholic Elementary School | Aurora | Catholic | 9.0 | 9.0 | 8.4 | 9.2 | -0.2 ↓ | Visit |
| 211 | 7 | Corpus Christi Catholic Elementary School | Richmond Hill | Catholic | 8.8 | 8.8 | 8.8 | 9.0 | -0.2 ↓ | Visit |
| 212 | 8 | Father Henri J M Nouwen Catholic Elementary School | Richmond Hill | Catholic | 8.8 | 8.8 | 7.9 | 7.9 | +0.9 ↑ | Visit |
| 215 | 9 | St Kateri Tekakwitha Catholic Elementary School | Markham | Catholic | 8.8 | 8.8 | 9.2 | 8.2 | +0.6 ↑ | Visit |
| 225 | 10 | St Benedict Catholic Elementary School | Unionville | Catholic | 8.8 | 8.8 | 8.2 | 8.6 | +0.2 ↑ | Visit |
| 236 | 11 | St Michael Catholic Academy | Thornhill | Catholic | 8.8 | 8.8 | 8.3 | 9.1 | -0.3 ↓ | Visit |
| 272 | 12 | St Charles Garnier Catholic Elementary School | Richmond Hill | Catholic | 8.7 | 8.7 | 8.7 | 8.1 | +0.6 ↑ | Visit |
| 316 | 13 | San Lorenzo Ruiz Catholic Elementary School | Markham | Catholic | 8.6 | 8.6 | 8.1 | 8.7 | -0.1 ↓ | Visit |
| 320 | 14 | St Julia Billiart Catholic Elementary School | Markham | Catholic | 8.6 | 8.6 | 8.1 | 7.4 | +1.2 ↑ | Visit |
| 324 | 15 | St Mary Immaculate Catholic Elementary School | Richmond Hill | Catholic | 8.6 | 8.6 | 7.9 | 8.9 | -0.3 ↓ | Visit |
| 365 | 16 | Divine Mercy Catholic Elementary School | Maple | Catholic | 8.5 | 8.5 | 7.5 | 7.8 | +0.7 ↑ | Visit |
| 367 | 17 | Holy Spirit Catholic Elementary School | Aurora | Catholic | 8.5 | 8.5 | 8.0 | 8.2 | +0.3 ↑ | Visit |
| 371 | 18 | St Anthony Catholic Elementary School | Thornhill | Catholic | 8.5 | 8.5 | 7.5 | 8.2 | +0.3 ↑ | Visit |
| 379 | 19 | St Mary Catholic Elementary School | Nobleton | Catholic | 8.5 | 8.5 | — | 7.1 | +1.4 ↑ | Visit |
| 415 | 20 | Our Lady Help of Christians Catholic Elementary School | Richmond Hill | Catholic | 8.4 | 8.4 | 8.8 | 9.0 | -0.6 ↓ | Visit |
| 422 | 21 | St Edward Catholic Elementary School | Markham | Catholic | 8.4 | 8.4 | 9.5 | 9.2 | -0.8 ↓ | Visit |
| 431 | 22 | St Patrick Catholic Elementary School | Markham | Catholic | 8.4 | 8.4 | 8.2 | 6.8 | +1.6 ↑ | Visit |
| 435 | 23 | St Andrew Catholic Elementary School | Woodbridge | Catholic | 8.4 | 8.4 | 9.7 | 8.0 | +0.4 ↑ | Visit |
| 490 | 24 | St Gregory the Great Catholic Academy | Woodbridge | Catholic | 8.3 | 8.3 | 7.3 | 7.9 | +0.4 ↑ | Visit |
| 558 | 25 | St John XXIII Catholic Elementary School | Unionville | Catholic | 8.2 | 8.2 | 8.3 | 7.3 | +0.9 ↑ | Visit |
| 561 | 26 | St Mary of the Angels Catholic Elementary School | Woodbridge | Catholic | 8.2 | 8.2 | 8.1 | 8.4 | -0.2 ↓ | Visit |
| 563 | 27 | Our Lady of the Rosary Catholic Elementary School | Concord | Catholic | 8.2 | 8.2 | 8.5 | 7.6 | +0.6 ↑ | Visit |
| 567 | 28 | St John Paul II Catholic Elementary School | Richmond Hill | Catholic | 8.2 | 8.2 | 8.9 | 8.3 | -0.1 ↓ | Visit |
| 570 | 29 | St Marguerite D'Youville Catholic Elementary School | Richmond Hill | Catholic | 8.2 | 8.2 | 7.7 | 8.4 | -0.2 ↓ | Visit |
| 576 | 30 | St Clement Catholic Elementary School | Woodbridge | Catholic | 8.2 | 8.2 | 8.9 | 8.5 | -0.3 ↓ | Visit |
| 579 | 31 | St Francis Xavier Catholic Elementary School | Markham | Catholic | 8.2 | 8.2 | 7.9 | 7.8 | +0.4 ↑ | Visit |
| 631 | 32 | St Padre Pio Catholic Elementary School | Woodbridge | Catholic | 8.1 | 8.1 | 7.9 | 7.2 | +0.9 ↑ | Visit |
| 637 | 33 | St Cecilia Catholic Elementary School | Maple | Catholic | 8.1 | 8.1 | 8.3 | 8.4 | -0.3 ↓ | Visit |
| 775 | 34 | St Michael the Archangel Catholic Elementary School | Vaughan | Catholic | 7.9 | 7.9 | 7.5 | 8.4 | -0.5 ↓ | Visit |
| 776 | 35 | Our Lady of Good Counsel Catholic Elementary School | Sharon | Catholic | 7.9 | 7.9 | 7.0 | 7.6 | +0.3 ↑ | Visit |
| 782 | 36 | St John Bosco Catholic Elementary School | Woodbridge | Catholic | 7.9 | 7.9 | 7.6 | 7.4 | +0.5 ↑ | Visit |
| 783 | 37 | Blessed Chiara Badano Catholic Elementary School | Stouffville | Catholic | 7.9 | 7.9 | — | — | — | — |
| 790 | 38 | St David Catholic Elementary School | Maple | Catholic | 7.9 | 7.9 | 8.8 | 8.0 | -0.1 ↓ | Visit |
| 794 | 39 | St Joseph Catholic Elementary School | Markham | Catholic | 7.9 | 7.9 | 9.0 | 9.0 | -1.1 ↓ | Visit |
| 803 | 40 | Father Frederick McGinn Catholic Elementary School | Richmond Hill | Catholic | 7.9 | 7.9 | 8.3 | 6.8 | +1.1 ↑ | Visit |
| 875 | 41 | Notre Dame Catholic Elementary School | Newmarket | Catholic | 7.8 | 7.8 | 7.8 | 7.5 | +0.3 ↑ | Visit |
| 876 | 42 | Our Lady of Hope Catholic Elementary School | Richmond Hill | Catholic | 7.8 | 7.8 | 7.8 | 8.1 | -0.3 ↓ | Visit |
| 881 | 43 | Sir Richard W Scott Catholic Elementary School | Markham | Catholic | 7.8 | 7.8 | 8.2 | 7.7 | +0.1 ↑ | Visit |
| 882 | 44 | Pope Francis Catholic Elementary School | Kleinburg | Catholic | 7.8 | 7.8 | 7.7 | 7.6 | +0.2 ↑ | Visit |
| 968 | 45 | Guardian Angels | Vaughan | Catholic | 7.7 | 7.7 | 7.5 | 8.6 | -0.9 ↓ | Visit |
| 974 | 46 | Father John Kelly Catholic Elementary School | Maple | Catholic | 7.7 | 7.7 | 8.4 | 7.0 | +0.7 ↑ | Visit |
| 986 | 47 | St Emily Catholic Elementary School | Woodbridge | Catholic | 7.7 | 7.7 | 7.2 | 7.2 | +0.5 ↑ | Visit |
| 991 | 48 | St Raphael the Archangel Catholic Elementary School | Maple | Catholic | 7.7 | 7.7 | 7.4 | 7.1 | +0.6 ↑ | Visit |
| 1059 | 49 | Our Lady of the Annunciation Catholic Elementary School | Richmond Hill | Catholic | 7.6 | 7.6 | 7.8 | 7.4 | +0.2 ↑ | Visit |
| 1066 | 50 | St Anne Catholic Elementary School | Richmond Hill | Catholic | 7.6 | 7.6 | 9.1 | 8.7 | -1.1 ↓ | Visit |
| 1212 | 51 | St Patrick Catholic Elementary School | Schomberg | Catholic | 7.5 | 7.5 | 7.9 | 7.5 | 0.0 → | Visit |
| 1213 | 52 | St Rene Goupil-St Luke Catholic Elementary School | Thornhill | Catholic | 7.5 | 7.5 | 8.3 | 9.0 | -1.5 ↓ | Visit |
| 1284 | 53 | St Angela Merici Catholic Elementary School | Woodbridge | Catholic | 7.4 | 7.4 | 8.3 | 8.2 | -0.8 ↓ | Visit |
| 1298 | 54 | St Joseph The Worker Catholic Elementary School | Thornhill | Catholic | 7.4 | 7.4 | 7.2 | 7.2 | +0.2 ↑ | Visit |
| 1303 | 55 | St Mark Catholic Elementary School | Stouffville | Catholic | 7.4 | 7.4 | 7.7 | 7.8 | -0.4 ↓ | Visit |
| 1304 | 56 | St Monica Catholic Elementary School | Buttonville | Catholic | 7.4 | 7.4 | 9.1 | 8.8 | -1.4 ↓ | Visit |
| 1305 | 57 | St Nicholas Catholic Elementary School | Newmarket | Catholic | 7.4 | 7.4 | 7.8 | 7.5 | -0.1 ↓ | Visit |
| 1377 | 58 | St Veronica Catholic Elementary School | Woodbridge | Catholic | 7.3 | 7.3 | 7.1 | 6.9 | +0.4 ↑ | Visit |
| 1466 | 59 | Canadian Martyrs Catholic Elementary School | Newmarket | Catholic | 7.2 | 7.2 | 7.1 | 7.5 | -0.3 ↓ | Visit |
| 1469 | 60 | St Brigid Catholic Elementary School | Stouffville | Catholic | 7.2 | 7.2 | 7.3 | 6.7 | +0.5 ↑ | Visit |
| 1474 | 61 | St John Chrysostom Catholic Elementary School | Newmarket | Catholic | 7.2 | 7.2 | 7.5 | 8.1 | -0.9 ↓ | Visit |
| 1486 | 62 | St James Catholic Elementary School | Maple | Catholic | 7.2 | 7.2 | 8.8 | 7.3 | -0.1 ↓ | Visit |
| 1488 | 63 | St Joseph Catholic Elementary School | Richmond Hill | Catholic | 7.2 | 7.2 | 5.9 | 6.5 | +0.7 ↑ | Visit |
| 1493 | 64 | St Matthew Catholic Elementary School | Unionville | Catholic | 7.2 | 7.2 | 7.1 | 8.5 | -1.3 ↓ | Visit |
| 1496 | 65 | St Stephen Catholic Elementary School | Woodbridge | Catholic | 7.2 | 7.2 | 8.1 | 6.9 | +0.3 ↑ | Visit |
| 1603 | 66 | St Gabriel the Archangel Catholic Elementary School | Woodbridge | Catholic | 7.1 | 7.1 | 7.8 | 6.7 | +0.4 ↑ | Visit |
| 1707 | 67 | Holy Name Catholic Elementary School | King City | Catholic | 7.0 | 7.0 | 8.1 | 7.2 | -0.2 ↓ | Visit |
| 1794 | 68 | Immaculate Conception Catholic Elementary School | Woodbridge | Catholic | 6.9 | 6.9 | 5.7 | 7.8 | -0.9 ↓ | Visit |
| 1798 | 69 | Our Lady of Fatima Catholic Elementary School | Woodbridge | Catholic | 6.9 | 6.9 | 7.7 | 7.9 | -1.0 ↓ | Visit |
| 1799 | 70 | Our Lady of Grace Catholic Elementary School | Aurora | Catholic | 6.9 | 6.9 | 8.1 | 7.1 | -0.2 ↓ | Visit |
| 1805 | 71 | St Jerome Catholic Elementary School | Aurora | Catholic | 6.9 | 6.9 | 7.4 | 7.5 | -0.6 ↓ | Visit |
| 1807 | 72 | St Catherine of Siena Catholic Elementary School | Woodbridge | Catholic | 6.9 | 6.9 | 8.1 | 7.7 | -0.8 ↓ | Visit |
| 1817 | 73 | St Paul Catholic Elementary School | Newmarket | Catholic | 6.9 | 6.9 | 7.3 | 7.9 | -1.0 ↓ | Visit |
| 2047 | 74 | St Brendan Catholic School | Stouffville | Catholic | 6.7 | 6.7 | 6.9 | 6.4 | +0.3 ↑ | Visit |
| 2159 | 75 | St Margaret Mary Catholic Elementary School | Woodbridge | Catholic | 6.6 | 6.6 | 7.1 | 8.5 | -1.9 ↓ | Visit |
| 2324 | 76 | St Elizabeth Seton Catholic Elementary School | Newmarket | Catholic | 6.4 | 6.4 | 7.0 | 6.2 | +0.2 ↑ | Visit |
| 2399 | 77 | Holy Jubilee Catholic Elementary School | Maple | Catholic | 6.3 | 6.3 | 5.9 | 7.3 | -1.0 ↓ | Visit |
| 2513 | 78 | San Marco Catholic Elementary School | Woodbridge | Catholic | 6.2 | 6.2 | 7.5 | 7.2 | -1.0 ↓ | Visit |
| 2572 | 79 | Good Shepherd Catholic Elementary School | East Gwillimbury | Catholic | 6.1 | 6.1 | 6.9 | 6.8 | -0.7 ↓ | Visit |
| 2581 | 80 | St Clare Catholic Elementary School | Woodbridge | Catholic | 6.1 | 6.1 | 7.4 | 7.5 | -1.4 ↓ | Visit |
| 2645 | 81 | Light of Christ Catholic Elementary School | Aurora | Catholic | 6.0 | 6.0 | 7.1 | 7.2 | -1.2 ↓ | Visit |
| 2839 | 82 | Blessed Trinity Catholic Elementary School | Maple | Catholic | 5.8 | 5.8 | 7.5 | 8.2 | -2.4 ↓ | Visit |
| 3065 | 83 | Prince of Peace Catholic Elementary School | Keswick | Catholic | 5.4 | 5.4 | 5.3 | 6.3 | -0.9 ↓ | Visit |
| 3077 | 84 | St Thomas Aquinas Catholic Elementary School | Keswick | Catholic | 5.4 | 5.4 | 6.4 | 6.8 | -1.4 ↓ | Visit |
| 3176 | 85 | St Bernadette's Catholic Elementary School | Sutton West | Catholic | 5.2 | 5.2 | 4.5 | 5.2 | 0.0 → | Visit |
| 3379 | 86 | St Peter Catholic Elementary School | Woodbridge | Catholic | 4.7 | 4.7 | 6.6 | 6.2 | -1.5 ↓ | Visit |
| 3978 | 87 | Our Lady of the Lake Catholic Elementary School | Keswick | Catholic | — | — | — | — | — | Visit |
| 3986 | 88 | St. Katharine Drexel Catholic Elementary School | Stouffville | Catholic | — | — | — | — | — | — |