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Filtered by Co. Dublin Gained a class teacher Clear all

45 schools in Co. Dublin · 2025/26

pupils
12,072
junior infants
1,718
in 7 all-Irish schools
2,024 16.8%
class teachers · 45 gained one · 0 lost one since 2024/25
539 +89 since 2015/16
together since 2015/16

The 32 schools with figures for both years had 8,545 pupils in 2015/16 and have 8,704 now. Schools that have closed, and newer schools, aren’t counted.

+1.9%
Over 10 years

12 grew · 14 steady · 6 fell · 13 newer

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Boys, girls or mixed
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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. ST Olaf's National School Dublin 16
    591 +30.5%
  2. St Thomas Junior National School Lucan
    573 +3.1%
  3. Scoil Mhuire LucanGirls
    558 −18.4%
  4. Stepaside Educate Together National School Dublin 18Multi-denominational
    542 +351.7%
  5. Gaelscoil na Fuinseoige Bác 14GaelscoilMulti-denominational
    441 Opened 2016/17
  6. Assumption Junior School Dublin 12DEIS
    434 −17.8%
  7. St Fintans NS Dublin 13
    431 −8.3%
  8. Griffith Barracks Multi D School Dublin 8Multi-denominational
    403 +60.6%
  9. Gaelscoil Thaobh na Coille Baile Átha Cliath 18Gaelscoil
    402 −9.0%
  10. St Francis Xavier Senior N S Dublin 15
    388 +19.0%
  11. St Columbas Con G & I Dublin 9
    378 −5.0%
  12. Gaelscoil Shliabh Rua Baile Átha Cliath 18GaelscoilMulti-denominational
    359 +529.8%
  13. St Marys School Dublin 24
    349 −9.1%
  14. Stapolin Educate Together National School Dublin 13Multi-denominational
    340 Opened 2019/20
  15. Our Lady of Consolation NS Dublin 5DEIS
    310 +41.6%
  16. St Davids N S Dublin 5DEIS
    308 −1.9%
  17. Blessed Oliver N S Balbriggan
    298 −13.1%
  18. Scoil an Leinbh Iosa Boys Seniors Dublin 9Boys
    297 +14.7%
  19. St Kilians Senior N S Dublin 24
    296 +41.6%
  20. Harcourt Terrace Educate Together National School Dublin 2Multi-denominational
    294 Opened 2018/19
  21. Scoil Chaitlin Maude Baile Átha Cliath 24GaelscoilMulti-denominationalDEIS
    284 −9.3%
  22. Gaelscoil na Giúise D24 W682GaelscoilMulti-denominational
    278 +434.6%
  23. S N Naomh Finnin Dublin 11DEIS
    266 +15.7%
  24. Cherrywood Educate Together National School Dublin 18Multi-denominational
    220 Opened 2020/21
  25. St Josephs MXD N S Dublin 3DEIS
    211 +7.1%
School Pupils Since 2015/16 Average class Class teacherschange on 2024/25 Junior infants
ST Olaf's National School Dublin 16 · Roll 19319O 591
+30.5%
25.7 +123 74
St Thomas Junior National School Lucan, Co. Dublin · Roll 19542R 573
+3.1%
25.8 +122 150
Scoil Mhuire Lucan, Co. Dublin · Roll 13447Q Girls 558
−18.4%
23.7 +123 64
Stepaside Educate Together National School Dublin 18 · Roll 20401G Multi-denominational 542
+351.7%
22.1 +224 55
Gaelscoil na Fuinseoige Bác 14, Co. Dublin · Roll 20487T GaelscoilMulti-denominational 441 – 25.6 +117 53
Assumption Junior School Dublin 12 · Roll 20450T DEIS 434
−17.8%
23.4 +118 119
St Fintans NS Dublin 13 · Roll 19549I 431
−8.3%
23.9 +118 46
Griffith Barracks Multi D School Dublin 8 · Roll 20012S Multi-denominational 403
+60.6%
25.2 +116 51
Gaelscoil Thaobh na Coille Baile Átha Cliath 18, Co. Dublin · Roll 20020R Gaelscoil 402
−9.0%
23.6 +117 50
St Francis Xavier Senior N S Dublin 15 · Roll 19470S 388
+19.0%
23.3 +116 0
St Columbas Con G & I Dublin 9 · Roll 16659A 378
−5.0%
23.6 +116 45
Gaelscoil Shliabh Rua Baile Átha Cliath 18, Co. Dublin · Roll 20425U GaelscoilMulti-denominational 359
+529.8%
22.4 +216 44
St Marys School Dublin 24 · Roll 18411U 349
−9.1%
24.9 +114 45
Stapolin Educate Together National School Dublin 13 · Roll 20519G Multi-denominational 340 – 21.4 +215 47
Our Lady of Consolation NS Dublin 5 · Roll 20064O DEIS 310
+41.6%
16.5 +117 64
St Davids N S Dublin 5 · Roll 19919P DEIS 308
−1.9%
23.2 +112 48
Blessed Oliver N S Balbriggan, Co. Dublin · Roll 17569E 298
−13.1%
22.9 +113 32
Scoil an Leinbh Iosa Boys Seniors Dublin 9 · Roll 17318C Boys 297
+14.7%
21.9 +113 0
St Kilians Senior N S Dublin 24 · Roll 19893A 296
+41.6%
24.2 +112 0
Harcourt Terrace Educate Together National School Dublin 2 · Roll 20501K Multi-denominational 294 – 24.6 +311 63
Scoil Chaitlin Maude Baile Átha Cliath 24, Co. Dublin · Roll 19872P GaelscoilMulti-denominationalDEIS 284
−9.3%
17.1 +116 32
Gaelscoil na Giúise D24 W682, Co. Dublin · Roll 20412L GaelscoilMulti-denominational 278
+434.6%
22.2 +112 45
S N Naomh Finnin Dublin 11 · Roll 19489Q DEIS 266
+15.7%
19.0 +114 26
Cherrywood Educate Together National School Dublin 18 · Roll 20535E Multi-denominational 220 – 23.1 +29 48
St Josephs MXD N S Dublin 3 · Roll 19774P DEIS 211
+7.1%
19.2 +111 44
Showing 25 of 45 Show 20 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.