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Filtered by Co. Dublin 17 or more class teachers Lost a class teacher Clear all

13 schools in Co. Dublin · 2025/26

pupils
6,239
junior infants
648
in all-Irish schools
0
class teachers · 0 gained one · 13 lost one since 2024/25
272 −9 since 2015/16
together since 2015/16

The 12 schools with figures for both years had 6,867 pupils in 2015/16 and have 5,883 now. Schools that have closed, and newer schools, aren’t counted.

−14.3%
Over 10 years

0 grew · 6 steady · 6 fell · 1 newer

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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 Ronans N S Dublin 22DEIS
    396 −8.8%
  12. Scoil Úna Naofa Dublin 12DEIS
    356 From 2016/17
  13. Gardiner Street Convent Dublin 1DEIS
    298 −11.8%
Showing 13 of 13

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.