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Filtered by Co. Dublin Falling 9 to 16 class teachers Clear all

111 schools in Co. Dublin · 2025/26

pupils
30,978
junior infants
4,072
in 8 all-Irish schools
2,462 7.9%
class teachers · 4 gained one · 38 lost one since 2024/25
1,439 −146 since 2015/16
together since 2015/16

The 111 schools with figures for both years had 39,368 pupils in 2015/16 and have 30,978 now. Schools that have closed, and newer schools, aren’t counted.

−21.3%
Over 10 years

0 grew · 0 steady · 111 fell

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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. Lucan East ETNS LucanMulti-denominationalDEIS
    416 −10.2%
  2. Donabate/Portrane Educate Together NS DonabateMulti-denominational
    414 −16.0%
  3. St Brigids Convent Dublin 11Girls
    406 −12.5%
  4. St Brigids Boys N S Dublin 18Boys
    406 −20.9%
  5. Our Lady Good Counsel GNS Dun Laoghaire
    398 −13.5%
  6. Corpus Christi N S Dublin 9
    398 −11.8%
  7. Swords Educate Together NS SwordsMulti-denominational
    394 −10.7%
  8. S N Naomh Lorcan StillorganBoys
    390 −12.2%
  9. Our Lady of Good Counsel Boys N S Dún LaoghaireBoys
    389 −10.0%
  10. Taney N S Dublin 14Church of Ireland
    384 −12.3%
  11. Lucan Educate Together NS LucanMulti-denominational
    384 −13.1%
  12. St Martin de Porres N S Dublin 24
    383 −12.6%
  13. Esker Educate Together NS LucanMulti-denominationalDEIS
    382 −11.2%
  14. Gaelscoil an Duinninigh SordGaelscoil
    380 −10.4%
  15. S N C Naomh Padraig DonabateGirls
    376 −12.1%
  16. Gaelscoil Eiscir Riada LeamhcánGaelscoil
    376 −22.0%
  17. St Raphaelas N S BlackrockGirls
    375 −20.4%
  18. Castleknock Educate Together NS Dublin 15Multi-denominational
    374 −14.4%
  19. St Brigids Convent N S Dublin 5Girls
    369 −14.4%
  20. Scoil Maelruain Junior Dublin 24
    369 −21.2%
  21. Scoil Mhuire Boys Dublin 14Boys
    367 −19.9%
  22. Presentation Primary School Dublin 6WGirls
    367 −37.7%
  23. Gaelscoil Naomh Padraig LeamhcánGaelscoil
    367 −23.1%
  24. SN N Sailbheastar Nfa Malahide
    365 −18.9%
  25. S N Naomh Teresa BalbrigganDEIS
    364 −14.8%
Showing 25 of 111 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.