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254 schools in Co. Dublin · 2025/26

pupils
74,785
junior infants
8,625
in 11 all-Irish schools
2,648 3.5%
class teachers · 27 gained one · 51 lost one since 2024/25
3,337 +194 since 2015/16
together since 2015/16 (about this figure)

The 223 schools with figures for both years had 71,336 pupils in 2015/16 and have 65,402 now. Schools that have closed, and newer schools, aren’t counted.

−8.3%
Over 10 years

45 grew · 66 steady · 112 fell · 31 newer

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55 special schools also match this search. Show them too

  1. 838 pupils −9.6% over 10 years
  2. St Brigids MXD N S Dublin 15
    834 pupils −12.2% over 10 years
  3. 721 pupils −11.5% over 10 years
  4. Scoil Choilm Community NS Dublin 15Multi-denominationalDEIS
    698 pupils −2.6% over 10 years
  5. 666 pupils +7.2% over 10 years
  6. The Harold School Glasthule
    642 pupils −5.6% over 10 years
  7. Scoil Naomh Mearnog Portmarnock
    638 pupils +28.4% over 10 years
  8. Sacred Heart N S Dublin 15
    632 pupils −25.3% over 10 years
  9. 626 pupils +30.1% over 10 years
  10. 624 pupils +0.3% over 10 years
  11. Scoil Thomais Dublin 15
    622 pupils −10.2% over 10 years
  12. 614 pupils +18.5% over 10 years
  13. Holywell Educate Together National School SwordsMulti-denominational
    613 pupils +22.8% over 10 years
  14. 587 pupils +95.0% over 10 years
  15. Scoil Ghrainne Community National School Dublin 15Multi-denominational
    585 pupils −13.2% over 10 years
  16. Hansfield Educate Together National School Dublin 15Multi-denominational
    575 pupils +114.6% over 10 years
  17. 573 pupils +3.1% over 10 years
  18. Scoil Mhuire LucanGirls
    558 pupils −18.4% over 10 years
  19. Stepaside Educate Together National School Dublin 18Multi-denominational
    542 pupils +351.7% over 10 years
  20. St Ciarans N S Dublin 15
    530 pupils −27.5% over 10 years
  21. 530 pupils −6.2% over 10 years
  22. Dublin 7 Educate Together NS Dublin 7Multi-denominational
    515 pupils +16.3% over 10 years
  23. Tyrrelstown Educate Together National School Dublin 15Multi-denominational
    511 pupils −13.4% over 10 years
  24. Lucan B N S LucanBoys
    501 pupils −0.8% over 10 years
  25. Scoil Padraig Naofa B BlackrockBoys
    499 pupils −22.9% over 10 years
  26. 498 pupils −21.6% over 10 years
  27. St Marks Sen NS Dublin 24DEIS
    497 pupils −3.5% over 10 years
  28. 495 pupils +23.1% over 10 years
  29. St Marys N S Lucan
    483 pupils +14.2% over 10 years
  30. Mother of Divine Grace Dublin 11DEIS
    480 pupils −2.8% over 10 years
  31. St Patrick GNS Dublin 16
    472 pupils −8.5% over 10 years
  32. Griffeen Valley Educate Together NS LucanMulti-denominational
    466 pupils −4.3% over 10 years
  33. Sacred Heart N S Dublin 22
    463 pupils −1.7% over 10 years
  34. Bishop Galvin NS Dublin 6w
    461 pupils −2.9% over 10 years
  35. 449 pupils −8.4% over 10 years
  36. St Marks Junior Mixed Dublin 24DEIS
    449 pupils −22.0% over 10 years
  37. Ladyswell N S Dublin 15DEIS
    447 pupils −16.6% over 10 years
  38. Clochar Loreto N S Dublin 14
    445 pupils −13.6% over 10 years
  39. Gaelscoil na Fuinseoige Bác 14GaelscoilMulti-denominational
    441 pupils Opened 2016/17
  40. St Annes MXD N S Shankill
    440 pupils −13.9% over 10 years
  41. Bishop Shanahan NS Dublin 6W
    437 pupils −8.0% over 10 years
  42. Assumption Junior School Dublin 12DEIS
    434 pupils −17.8% over 10 years
  43. 431 pupils +8.0% over 10 years
  44. 429 pupils −7.7% over 10 years
  45. St Molaga Senior NS Balbriggan
    422 pupils −5.6% over 10 years
  46. 417 pupils +16.5% over 10 years
  47. Lucan East ETNS LucanMulti-denominationalDEIS
    416 pupils −10.2% over 10 years
  48. Islamic National School Dublin 14Muslim
    414 pupils +39.9% over 10 years
  49. Donabate/Portrane Educate Together NS DonabateMulti-denominational
    414 pupils −16.0% over 10 years
  50. Citywest & Saggart Community National School Dublin 24Multi-denominational
    413 pupils +90.3% over 10 years
  51. 410 pupils +40.4% over 10 years
  52. Glasnevin Educate Together NS Dublin 11Multi-denominational
    410 pupils +73.7% over 10 years
  53. Grace Park Educate Together National School Dublin 9Multi-denominational
    409 pupils Opened 2016/17
  54. Ballinteer Educate Together National School Dublin 16Multi-denominational
    399 pupils +121.7% over 10 years
  55. 398 pupils −13.5% over 10 years
  56. 397 pupils +14.4% over 10 years
  57. Swords Educate Together NS SwordsMulti-denominational
    394 pupils −10.7% over 10 years
  58. Rush and Lusk Educate Together NS LuskMulti-denominational
    393 pupils −2.2% over 10 years
  59. North Dublin Muslim NS Dublin 7Muslim
    391 pupils +64.3% over 10 years
  60. 388 pupils +19.0% over 10 years
  61. Broombridge Educate Together National School Dublin 7Multi-denominationalDEIS
    387 pupils Opened 2016/17
  62. Pelletstown ETNS Dublin 15Multi-denominational
    386 pupils +757.8% over 10 years
  63. 384 pupils +15.3% over 10 years
  64. Lucan Educate Together NS LucanMulti-denominational
    384 pupils −13.1% over 10 years
  65. 383 pupils −12.6% over 10 years
  66. Esker Educate Together NS LucanMulti-denominationalDEIS
    382 pupils −11.2% over 10 years
  67. St Helens Senior N S Portmarnock
    381 pupils +42.7% over 10 years
  68. 377 pupils −3.6% over 10 years
  69. City West Educate Together National School Dublin 24Multi-denominational
    376 pupils +83.4% over 10 years
  70. Lucan Community National School LucanMulti-denominational
    375 pupils +443.5% over 10 years
  71. Bracken Educate Together NS BalbrigganMulti-denominationalDEIS
    375 pupils −8.1% over 10 years
  72. St Andrews N S LucanChurch of Ireland
    374 pupils +9.0% over 10 years
  73. Castleknock Educate Together NS Dublin 15Multi-denominational
    374 pupils −14.4% over 10 years
  74. Belgard Heights N S Dublin 24DEIS
    372 pupils −2.1% over 10 years
  75. 370 pupils −3.4% over 10 years
  76. St Josephs Dun LaoghaireDEIS
    370 pupils +174.1% over 10 years
  77. St Brigids Convent N S Dublin 5Girls
    369 pupils −14.4% over 10 years
  78. 369 pupils −21.2% over 10 years
  79. 367 pupils −37.7% over 10 years
  80. Gaelscoil Naomh Padraig LeamhcánGaelscoil
    367 pupils −23.1% over 10 years
  81. Scoil Bhride Dublin 13
    365 pupils −3.9% over 10 years
  82. S N Naomh Teresa BalbrigganDEIS
    364 pupils −14.8% over 10 years
  83. Scoil Chormaic BalbrigganMulti-denominational
    362 pupils −15.2% over 10 years
  84. Scoil Naomh Seosamh Dublin 22Boys
    360 pupils −12.8% over 10 years
  85. St Ultans NS Dublin 10DEIS
    359 pupils −14.9% over 10 years
  86. 357 pupils −12.7% over 10 years
  87. Scoil Úna Naofa Dublin 12DEIS
    356 pupils From 2016/17
  88. Firhouse Educate Together National School Dublin 24Multi-denominational
    355 pupils +446.2% over 10 years
  89. 349 pupils −25.3% over 10 years
  90. Powerstown Educate Together National School Dublin 15Multi-denominational
    348 pupils +120.3% over 10 years
  91. Scoil Aoife CNS Dublin 24Multi-denominationalDEIS
    342 pupils +1,800.0% over 10 years
  92. Stapolin Educate Together National School Dublin 13Multi-denominational
    340 pupils Opened 2019/20
  93. St Georges N S BalbrigganChurch of Ireland
    339 pupils −16.3% over 10 years
  94. 338 pupils −22.7% over 10 years
  95. Skerries Educate Together National School SkerriesMulti-denominationalDEIS
    333 pupils +11.0% over 10 years
  96. Shellybanks Educate Together National School Dublin 4Multi-denominational
    333 pupils +274.2% over 10 years
  97. St Thomas Senior N S Dublin 24DEIS
    331 pupils −25.1% over 10 years
  98. Scoil Bride C Dublin 20Girls
    329 pupils −8.6% over 10 years
  99. S N Cholmcille C SwordsGirls
    326 pupils −20.9% over 10 years
  100. Scoil Lorcain B Dublin 20Boys
    321 pupils −18.5% over 10 years
Showing 100 of 254 Show 25 more

Distances are straight lines, not travel routes. Pupil numbers and class sizes: Department of Education, 2025/26. Change is over 10 years, since 2015/16. Average class size counts mainstream classes only, and there's one class teacher for each mainstream class. Totals cover every school in the results, not just those shown.