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Filtered by Co. Dublin Lost a class teacher Clear all

82 schools in Co. Dublin · 2025/26

pupils
22,487
junior infants
2,470
in 5 all-Irish schools
1,025 4.6%
class teachers · 0 gained one · 82 lost one since 2024/25
1,017 −109 since 2015/16
together since 2015/16

The 79 schools with figures for both years had 27,219 pupils in 2015/16 and have 21,668 now. Schools that have closed, and newer schools, aren’t counted.

−20.4%
Over 10 years

3 grew · 15 steady · 61 fell · 3 newer

Show the 82 schools

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School type
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Number of pupils
Change in pupils over 10 years
Average class size
Class teachers
Class teachers since 2024/25
DEIS and islands
  1. Sacred Heart N S Dublin 15
    632 −25.3%
  2. Holy Family Senior N S Swords
    624 +0.3%
  3. St Fiachras Sen N S Dublin 5
    609 −3.8%
  4. St Ciarans N S Dublin 15
    530 −27.5%
  5. Scoil Padraig Naofa B BlackrockBoys
    499 −22.9%
  6. St Cronans Junior National School Swords
    498 −21.6%
  7. St Patricks GNS Dublin 18Girls
    478 −15.2%
  8. St Patrick GNS Dublin 16
    472 −8.5%
  9. S N Cnoc Ainbhil StillorganGirls
    434 −6.9%
  10. St Laurence's National School Dublin 13
    413 −5.1%
  11. St Brigids Convent Dublin 11Girls
    406 −12.5%
  12. St Ronans N S Dublin 22DEIS
    396 −8.8%
  13. S N Naomh Lorcan StillorganBoys
    390 −12.2%
  14. St Helens Senior N S Portmarnock
    381 +42.7%
  15. S N Eoin Baisde Girls Senior Dublin 3Girls
    380 −8.4%
  16. St Raphaelas N S BlackrockGirls
    375 −20.4%
  17. Scoil Mhuire Boys Dublin 14Boys
    367 −19.9%
  18. Presentation Primary School Dublin 6WGirls
    367 −37.7%
  19. S N Peadar agus Pol N Balbriggan
    357 −24.5%
  20. Scoil Úna Naofa Dublin 12DEIS
    356 From 2016/17
  21. St Canices B N S Dublin 11BoysDEIS
    355 −17.8%
  22. Mary, Help of Christians G.N.S. Dublin 7Girls
    352 −17.8%
  23. Scoil Mhuire MXD Howth
    349 −3.9%
  24. St Georges N S BalbrigganChurch of Ireland
    339 −16.3%
  25. St Attractas Junior N S Dublin 16
    337 −2.6%
  26. Shellybanks Educate Together National School Dublin 4Multi-denominational
    333 +274.2%
  27. S N Cholmille B SwordsBoys
    320 −22.0%
  28. Thornleigh Educate Together National School SwordsMulti-denominationalDEIS
    313 −3.7%
  29. Scoil Carmel Dublin 24
    313 −30.1%
  30. Gaelscoil Bhaile Brigin Baile BrigínGaelscoilInter-denominational
    306 −34.2%
  31. Mhuire Iosef Junior Dublin 13
    302 −30.1%
  32. Gardiner Street Convent Dublin 1DEIS
    298 −11.8%
  33. St Josephs NS Dublin 17DEIS
    294 −14.5%
  34. Scoil Assaim Boys Seniors Dublin 5
    293 +13.1%
  35. S N Eoin Bosco Buach Dublin 7Boys
    290 −21.0%
  36. St Brigids Boys N S Dublin 5Boys
    287 −23.7%
  37. St Kevins Boys Dublin 24Boys
    275 −16.4%
  38. Scoil Nais Caitriona Rush
    274 −3.9%
  39. Divine Mercy Senior National School LucanDEIS
    274 −46.9%
  40. Scoil Santain Baile Átha Cliath 24GaelscoilDEIS
    262 −27.4%
  41. St Kevins Girls Dublin 24Girls
    257 −12.9%
  42. SN an Spioraid Naiomh C Dublin 11GirlsDEIS
    249 −18.1%
  43. Scoil Mhuire Dublin 18DEIS
    249 −24.3%
  44. St Philips Senior N S Dublin 15DEIS
    231 −15.1%
  45. Neillstown N S Dublin 22DEIS
    231 −24.3%
  46. Holy Spirit B N S Dublin 11BoysDEIS
    229 −33.8%
  47. Star of the Sea Dublin 4Boys
    223 −37.7%
  48. Eoin Baisde C Naoidh Dublin 3Girls
    215 −14.7%
  49. Scoil Bride C Dublin 15Girls
    213 −31.9%
  50. St Gabriels NS Dublin 10DEIS
    211 −5.8%
  51. Marist National School Dublin 12DEIS
    210 −29.8%
  52. Gaelscoil Inse Chor Baile Átha Cliath 8Gaelscoil
    209 −13.3%
  53. S N San Vinseann Cailin Dublin 1GirlsDEIS
    208 +1.5%
  54. St Marys Sen N S Dublin 22DEIS
    204 −11.3%
  55. Divine Mercy Junior National School LucanDEIS
    204 −61.0%
  56. Na Maighdine Muire Girl Dublin 16
    200 −28.8%
  57. Scoil Bride B Dublin 15Boys
    193 −43.2%
  58. S N Mhuire Garristown
    191 −19.4%
  59. Booterstown Boys BlackrockBoys
    188 −35.4%
  60. Scoil Mhuire Dublin 16DEIS
    187 −22.1%
  61. St Patricks Senior School Dublin 15DEIS
    184 −26.1%
  62. Scoil an Maighdine Mhuire Boys Dublin 16Boys
    176 −29.3%
  63. Bantiarna na mBuanna Boys Dublin 9BoysDEIS
    174 −10.3%
  64. An Chroi Ro Naofa Sois Dublin 24DEIS
    167 −41.2%
  65. St Francis Junior National School Dublin 17DEIS
    165 −15.8%
  66. St Clares Convent N S Dublin 6W
    163 −46.9%
  67. Virgin Mary Girls National School Dublin 9GirlsDEIS
    160 +20.3%
  68. Scoil Aenghusa Jun NS Dublin 24DEIS
    159 −37.6%
  69. Darndale NS Junior Dublin 17DEIS
    159 −24.6%
  70. St Kevins Junior N S Dublin 13
    149 −8.0%
  71. Scoil Colmcille Senior BallybrackDEIS
    147 −26.5%
  72. S N Eoin Bosco Nai Buac Dublin 7Boys
    146 −40.9%
  73. Scoil Cnoc Mhuire Sin Dublin 24DEIS
    145 −1.4%
  74. St Brigids Senior Girls Dublin 11DEIS
    137 −25.1%
  75. John Scottus NS Dublin 6Multi-denominational
    136 −42.4%
Showing 75 of 82 Show 7 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.