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Largest Schools in Ottawa-Carleton DSB (2025)

Schools with the highest enrolment. Ranked by the Success Index (Canada) from official Canadian data; 100 schools in Ottawa-Carleton DSB, Ontario. Rank positions shown on each profile are within Canada and Ontario.

  1. 1
    84
    Earl of March Secondary SchoolKanata · Public SecondaryEnrolment: 1,715
  2. 2
    69
    Longfields Davidson Heights Secondary SchoolNepean · Public SecondaryEnrolment: 1,650
  3. 3
    63
    John McCrae Secondary SchoolNepean · Public SecondaryEnrolment: 1,550
  4. 4
    80
    Merivale High SchoolNepean · Public SecondaryEnrolment: 1,440
  5. 5
    64
    South Carleton High SchoolRichmond · Public SecondaryEnrolment: 1,380
  6. 6
    79
    Glebe Collegiate InstituteOttawa · Public SecondaryEnrolment: 1,315
  7. 7
    90
    West Carleton Secondary SchoolDunrobin · Public SecondaryEnrolment: 1,290
  8. 8
    83
    Nepean High SchoolOttawa · Public SecondaryEnrolment: 1,270
  9. 9
    79
    Canterbury High SchoolOttawa · Public SecondaryEnrolment: 1,160
  10. 10
    7
    Gloucester High SchoolGloucester · Public SecondaryEnrolment: 1,160
  11. 11
    86
    Colonel By Secondary SchoolGloucester · Public SecondaryEnrolment: 1,140
  12. 12
    69
    Sir Wilfrid Laurier Secondary SchoolOrleans · Public SecondaryEnrolment: 1,050
  13. 13
    70
    Lisgar Collegiate InstituteOttawa · Public SecondaryEnrolment: 960
  14. 14
    26
    Woodroffe High SchoolOttawa · Public SecondaryEnrolment: 900
  15. 15
    76
    A.Y. Jackson Secondary SchoolKanata · Public SecondaryEnrolment: 880
  16. 16
    71
    Broadview Public SchoolOttawa · Public ElementaryEnrolment: 865
  17. 17
    5
    Ridgemont High SchoolOttawa · Public SecondaryEnrolment: 860
  18. 18
    46
    Shingwàkons Public SchoolStittsville · Public ElementaryEnrolment: 790
  19. 19
    54
    Sir Robert Borden High SchoolNepean · Public SecondaryEnrolment: 775
  20. 20
    53
    Cairine Wilson Secondary SchoolOrleans · Public SecondaryEnrolment: 775
  21. 21
    39
    Vincent Massey Public SchoolOttawa · Public ElementaryEnrolment: 765
  22. 22
    59
    Stittsville Public SchoolStittsville · Public ElementaryEnrolment: 760
  23. 23
    26
    Bell High SchoolNepean · Public SecondaryEnrolment: 760
  24. 24
    87
    W. Erskine Johnston Public SchoolKanata · Public ElementaryEnrolment: 745
  25. 25
    51
    Wazoson Public SchoolNepean · Public ElementaryEnrolment: 745
  26. 26
    92
    Hopewell Avenue Public SchoolOttawa · Public ElementaryEnrolment: 740
  27. 27
    67
    Steve MacLean Public SchoolGloucester · Public ElementaryEnrolment: 705
  28. 28
    54
    Longfields Davidson Heights Intermediate SchoolNepean · Public ElementaryEnrolment: 705
  29. 29
    67
    Earl of March Intermediate SchoolKanata · Public ElementaryEnrolment: 685
  30. 30
    65
    Castor Valley Elementary SchoolGreely · Public ElementaryEnrolment: 685
  31. 31
    22
    Manor Park Public SchoolOttawa · Public ElementaryEnrolment: 680
  32. 32
    59
    Berrigan Elementary SchoolNepean · Public ElementaryEnrolment: 665
  33. 33
    65
    Chapman Mills Elementary SchoolOttawa · Public ElementaryEnrolment: 660
  34. 34
    73
    Agincourt Road Public SchoolOttawa · Public ElementaryEnrolment: 655
  35. 35
    50
    Alta Vista Public SchoolOttawa · Public ElementaryEnrolment: 655
  36. 36
    49
    Stonecrest Elementary SchoolWoodlawn · Public ElementaryEnrolment: 655
  37. 37
    17
    Brookfield High SchoolOttawa · Public SecondaryEnrolment: 650
  38. 38
    80
    Knoxdale Public SchoolNepean · Public ElementaryEnrolment: 625
  39. 39
    53
    Fisher Park/Summit AS Public SchoolOttawa · Public ElementaryEnrolment: 620
  40. 40
    26
    Roberta Bondar Public SchoolOttawa · Public ElementaryEnrolment: 620
  41. 41
    80
    Westwind Public SchoolOttawa · Public ElementaryEnrolment: 615
  42. 42
    59
    Cedarview Middle SchoolNepean · Public ElementaryEnrolment: 615
  43. 43
    45
    Kars on the Rideau Public SchoolKars · Public ElementaryEnrolment: 605
  44. 44
    64
    Jack Donohue Public SchoolKanata · Public ElementaryEnrolment: 595
  45. 45
    45
    Dunning-Foubert Elementary SchoolOrleans · Public ElementaryEnrolment: 595
  46. 46
    44
    Half Moon Bay Public SchoolNepean · Public ElementaryEnrolment: 595
  47. 47
    76
    Huntley Centennial Public SchoolCarp · Public ElementaryEnrolment: 585
  48. 48
    47
    Farley Mowat Public SchoolNepean · Public ElementaryEnrolment: 575
  49. 49
    90
    Elmdale Public SchoolOttawa · Public ElementaryEnrolment: 565
  50. 50
    71
    Maplewood Intermediate SchoolStittsville · Public ElementaryEnrolment: 555
  51. 51
    78
    Woodroffe Avenue Public SchoolOttawa · Public ElementaryEnrolment: 550
  52. 52
    57
    Vimy Ridge Public SchoolOttawa · Public ElementaryEnrolment: 550
  53. 53
    46
    John Young Elementary SchoolKanata · Public ElementaryEnrolment: 545
  54. 54
    75
    Summerside Public SchoolOttawa · Public ElementaryEnrolment: 540
  55. 55
    59
    Glen Ogilvie Public SchoolGloucester · Public ElementaryEnrolment: 525
  56. 56
    51
    Pleasant Park Public SchoolOttawa · Public ElementaryEnrolment: 525
  57. 57
    20
    Henry Munro Middle SchoolGloucester · Public ElementaryEnrolment: 515
  58. 58
    69
    South March Public SchoolKanata · Public ElementaryEnrolment: 510
  59. 59
    32
    Mino Mikan Elementary SchoolGloucester · Public ElementaryEnrolment: 505
  60. 60
    3
    Carleton Heights Public SchoolOttawa · Public ElementaryEnrolment: 505
  61. 61
    83
    Stephen Leacock Public SchoolKanata · Public ElementaryEnrolment: 500
  62. 62
    78
    Maple Ridge Elementary SchoolOrleans · Public ElementaryEnrolment: 500
  63. 63
    79
    W.O. Mitchell Elementary SchoolKanata · Public ElementaryEnrolment: 495
  64. 64
    13
    Sawmill Creek Elementary SchoolGloucester · Public ElementaryEnrolment: 495
  65. 65
    65
    Mary Honeywell Elementary SchoolNepean · Public ElementaryEnrolment: 490
  66. 66
    59
    Osgoode Township High SchoolMetcalfe · Public SecondaryEnrolment: 490
  67. 67
    37
    Jockvale Elementary SchoolNepean · Public ElementaryEnrolment: 465
  68. 68
    26
    Hillcrest High SchoolOttawa · Public SecondaryEnrolment: 460
  69. 69
    81
    Kanata Highlands Public SchoolKanata · Public ElementaryEnrolment: 450
  70. 70
    31
    Meadowlands Public SchoolNepean · Public ElementaryEnrolment: 450
  71. 71
    14
    W.E. Gowling Public SchoolOttawa · Public ElementaryEnrolment: 450
  72. 72
    70
    Barrhaven Public SchoolNepean · Public ElementaryEnrolment: 440
  73. 73
    58
    Sir Winston Churchill Public SchoolNepean · Public ElementaryEnrolment: 435
  74. 74
    58
    Bayview Public SchoolOttawa · Public ElementaryEnrolment: 435
  75. 75
    30
    Fielding Drive Public SchoolOttawa · Public ElementaryEnrolment: 435
  76. 76
    5
    Pinecrest Public SchoolOttawa · Public ElementaryEnrolment: 435
  77. 77
    76
    Adrienne Clarkson Elementary SchoolNepean · Public ElementaryEnrolment: 430
  78. 78
    82
    Mutchmor Public SchoolOttawa · Public ElementaryEnrolment: 425
  79. 79
    78
    A. Lorne Cassidy Elementary SchoolStittsville · Public ElementaryEnrolment: 425
  80. 80
    66
    Rockcliffe Park Public SchoolOttawa · Public ElementaryEnrolment: 410
  81. 81
    56
    Henry Larsen Elementary SchoolGloucester · Public ElementaryEnrolment: 405
  82. 82
    16
    Queen Elizabeth Public SchoolOttawa · Public ElementaryEnrolment: 405
  83. 83
    72
    Connaught Public SchoolOttawa · Public ElementaryEnrolment: 395
  84. 84
    36
    Avalon Public SchoolOrleans · Public ElementaryEnrolment: 395
  85. 85
    65
    Bridlewood Community Elementary SchoolKanata · Public ElementaryEnrolment: 390
  86. 86
    53
    Trillium Elementary SchoolOrleans · Public ElementaryEnrolment: 390
  87. 87
    23
    D. Roy Kennedy Public SchoolOttawa · Public ElementaryEnrolment: 380
  88. 88
    59
    Sir Robert Borden Intermediate SchoolNepean · Public ElementaryEnrolment: 375
  89. 89
    80
    Elgin Street Public SchoolOttawa · Public ElementaryEnrolment: 370
  90. 90
    80
    Roch Carrier Elementary SchoolKanata · Public ElementaryEnrolment: 350
  91. 91
    47
    Katimavik Elementary SchoolKanata · Public ElementaryEnrolment: 350
  92. 92
    64
    Robert Hopkins Public SchoolGloucester · Public ElementaryEnrolment: 345
  93. 93
    53
    Richmond Public SchoolRichmond · Public ElementaryEnrolment: 345
  94. 94
    10
    Ottawa Technical Secondary SchoolOttawa · Public SecondaryEnrolment: 330
  95. 95
    50
    Severn Avenue Public SchoolOttawa · Public ElementaryEnrolment: 325
  96. 96
    42
    Le Phare Elementary SchoolGloucester · Public ElementaryEnrolment: 325
  97. 97
    63
    Roland Michener Public SchoolKanata · Public ElementaryEnrolment: 320
  98. 98
    27
    Merivale Intermediate SchoolNepean · Public ElementaryEnrolment: 320
  99. 99
    59
    Glashan Public SchoolOttawa · Public ElementaryEnrolment: 315
  100. 100
    22
    Sir Guy Carleton Secondary SchoolNepean · Public SecondaryEnrolment: 315

Earl of March Secondary School in Kanata leads the 2025 list of largest schools in Ottawa-Carleton DSB with Enrolment 1,715. Of the 100 schools shown, 100 are public.

For the full picture see the wider Ontario largest schools rankings, every school on the Ottawa-Carleton DSB page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best largest school in Ottawa-Carleton DSB?

Earl of March Secondary School in Kanata, Ontario ranks first among largest schools in Ottawa-Carleton DSB with Enrolment 1,715 (Enrolment: 1,715).

How are largest schools in Ottawa-Carleton DSB ranked?

Schools with the highest enrolment. Only schools eligible for the Success Index (Canada) are included; the index is shown alongside for context.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official Canadian data (Ontario – School information and student demographics; BC Data Catalogue – Foundation Skills Assessment). Provinces publish different assessments, so scores are comparable within a province, not between provinces.