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15 schools in Co. Dublin · 2025/26

pupils
5,314
junior infants
461
in all-Irish schools
0
class teachers · 0 gained one · 15 lost one since 2024/25
230 +9 since 2015/16
together since 2015/16 (about this figure)

The 15 schools with figures for both years had 5,578 pupils in 2015/16 and have 5,314 now. Schools that have closed, and newer schools, aren’t counted.

−4.7%
Over 10 years

0 grew · 15 steady · 0 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. 624 pupils +0.3% over 10 years
  2. 609 pupils −3.8% over 10 years
  3. St Patrick GNS Dublin 16
    472 pupils −8.5% over 10 years
  4. S N Cnoc Ainbhil StillorganGirls
    434 pupils −6.9% over 10 years
  5. 413 pupils −5.1% over 10 years
  6. St Ronans N S Dublin 22DEIS
    396 pupils −8.8% over 10 years
  7. 380 pupils −8.4% over 10 years
  8. 349 pupils −3.9% over 10 years
  9. 337 pupils −2.6% over 10 years
  10. Thornleigh Educate Together National School SwordsMulti-denominationalDEIS
    313 pupils −3.7% over 10 years
  11. 274 pupils −3.9% over 10 years
  12. St Gabriels NS Dublin 10DEIS
    211 pupils −5.8% over 10 years
  13. S N San Vinseann Cailin Dublin 1GirlsDEIS
    208 pupils +1.5% over 10 years
  14. 149 pupils −8.0% over 10 years
  15. Scoil Cnoc Mhuire Sin Dublin 24DEIS
    145 pupils −1.4% over 10 years
Showing 15 of 15

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.