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66 schools in Co. Dublin · 2025/26

pupils
20,515
junior infants
2,087
in 3 all-Irish schools
714 3.5%
class teachers · 6 gained one · 8 lost one since 2024/25
895 +60 since 2015/16
together since 2015/16

The 66 schools with figures for both years had 21,120 pupils in 2015/16 and have 20,515 now. Schools that have closed, and newer schools, aren’t counted.

−2.9%
Over 10 years

0 grew · 66 steady · 0 fell

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DEIS and islands

20 special schools also match this search. Show them too

  1. St Oliver Plunkett Malahide
    838 −9.6%
  2. Scoil Choilm Community NS Dublin 15Multi-denominationalDEIS
    698 −2.6%
  3. S N Naomh Mhuire Saggart
    666 +7.2%
  4. The Harold School Glasthule
    642 −5.6%
  5. Holy Family Senior N S Swords
    624 +0.3%
  6. St Thomas Junior National School Lucan
    573 +3.1%
  7. Brackenstown Senior N S Swords
    530 −6.2%
  8. Lucan B N S LucanBoys
    501 −0.8%
  9. St Marks Sen NS Dublin 24DEIS
    497 −3.5%
  10. Mother of Divine Grace Dublin 11DEIS
    480 −2.8%
  11. St Patrick GNS Dublin 16
    472 −8.5%
  12. Griffeen Valley Educate Together NS LucanMulti-denominational
    466 −4.3%
  13. Sacred Heart N S Dublin 22
    463 −1.7%
  14. Bishop Galvin NS Dublin 6w
    461 −2.9%
  15. St Patricks N School Dublin 9
    449 −8.4%
  16. Bishop Shanahan NS Dublin 6W
    437 −8.0%
  17. Adamstown Castle Educate Together National School AdamstownMulti-denominational
    431 +8.0%
  18. Mary Mother of Hope Senior NS Dublin 15
    429 −7.7%
  19. St Molaga Senior NS Balbriggan
    422 −5.6%
  20. Rush and Lusk Educate Together NS LuskMulti-denominational
    393 −2.2%
  21. Scoil Treasa Firhouse Dublin 24
    377 −3.6%
  22. Bracken Educate Together NS BalbrigganMulti-denominationalDEIS
    375 −8.1%
  23. St Andrews N S LucanChurch of Ireland
    374 +9.0%
  24. Belgard Heights N S Dublin 24DEIS
    372 −2.1%
  25. St Patricks Boys National School DonabateBoys
    370 −3.4%
Showing 25 of 66 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.