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Filtered by Co. Dublin Lost a class teacher Clear all

51 schools in Co. Dublin · 2025/26

pupils
13,432
junior infants
1,442
in 2 all-Irish schools
424 3.2%
class teachers · 0 gained one · 51 lost one since 2024/25
620 −73 since 2015/16
together since 2015/16

The 49 schools with figures for both years had 16,275 pupils in 2015/16 and have 12,743 now. Schools that have closed, and newer schools, aren’t counted.

−21.7%
Over 10 years

2 grew · 8 steady · 39 fell · 2 newer

Show the 51 schools

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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 Ciarans N S Dublin 15
    530 −27.5%
  4. Scoil Padraig Naofa B BlackrockBoys
    499 −22.9%
  5. St Cronans Junior National School Swords
    498 −21.6%
  6. St Patrick GNS Dublin 16
    472 −8.5%
  7. St Helens Senior N S Portmarnock
    381 +42.7%
  8. Presentation Primary School Dublin 6WGirls
    367 −37.7%
  9. Scoil Úna Naofa Dublin 12DEIS
    356 From 2016/17
  10. St Georges N S BalbrigganChurch of Ireland
    339 −16.3%
  11. Shellybanks Educate Together National School Dublin 4Multi-denominational
    333 +274.2%
  12. S N Cholmille B SwordsBoys
    320 −22.0%
  13. Thornleigh Educate Together National School SwordsMulti-denominationalDEIS
    313 −3.7%
  14. Scoil Carmel Dublin 24
    313 −30.1%
  15. Gaelscoil Bhaile Brigin Baile BrigínGaelscoilInter-denominational
    306 −34.2%
  16. St Josephs NS Dublin 17DEIS
    294 −14.5%
  17. S N Eoin Bosco Buach Dublin 7Boys
    290 −21.0%
  18. St Brigids Boys N S Dublin 5Boys
    287 −23.7%
  19. St Kevins Boys Dublin 24Boys
    275 −16.4%
  20. Scoil Nais Caitriona Rush
    274 −3.9%
  21. St Kevins Girls Dublin 24Girls
    257 −12.9%
  22. SN an Spioraid Naiomh C Dublin 11GirlsDEIS
    249 −18.1%
  23. Scoil Mhuire Dublin 18DEIS
    249 −24.3%
  24. St Philips Senior N S Dublin 15DEIS
    231 −15.1%
  25. Neillstown N S Dublin 22DEIS
    231 −24.3%
Showing 25 of 51 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.