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227 schools in Co. Dublin · 2025/26

pupils: 66,301
junior infants: 7,461
in 20 all-Irish schools: 5,791 8.7%
class teachers · 22 gained one · 48 lost one since 2024/25: 2,966 +173 since 2015/16
together since 2015/16 (about this figure) The 204 schools with figures for both years had 65,591 pupils in 2015/16 and have 58,508 now. Schools that have closed, and newer schools, aren’t counted.: −10.8%

Over 10 years

29 grew · 64 steady · 111 fell · 23 newer

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Gaelscoil Bhrian Bóroimhe SordGaelscoilInter-denominational
441 pupils −7.0% over 10 years
St. Francis of Assisi National School Dublin 13
434 pupils +11.3% over 10 years
Adamstown Castle Educate Together National School AdamstownMulti-denominational
431 pupils +8.0% over 10 years
S N San Treasa Mount Merrion
430 pupils −5.7% over 10 years
Mary Mother of Hope Senior NS Dublin 15
429 pupils −7.7% over 10 years
St. John the Evangelist National School Adamstown Castle
417 pupils +16.5% over 10 years
Lucan East ETNS LucanMulti-denominationalDEIS
416 pupils −10.2% over 10 years
Monkstown Eucate Together NS Dun LaoghaireMulti-denominational
415 pupils −5.3% over 10 years
Donabate/Portrane Educate Together NS DonabateMulti-denominational
414 pupils −16.0% over 10 years
Citywest & Saggart Community National School Dublin 24Multi-denominational
413 pupils +90.3% over 10 years
Belmayne Educate Together National School Dublin 13Multi-denominationalDEIS
413 pupils +4.8% over 10 years
Glasnevin Educate Together NS Dublin 11Multi-denominational
410 pupils +73.7% over 10 years
Our lady's Grove Primary School Dublin 14
409 pupils −6.2% over 10 years
Grace Park Educate Together National School Dublin 9Multi-denominational
409 pupils Opened 2016/17
St Brigids Convent Dublin 11Girls
406 pupils −12.5% over 10 years
St Brigids Boys N S Dublin 18Boys
406 pupils −20.9% over 10 years
Griffith Barracks Multi D School Dublin 8Multi-denominational
403 pupils +60.6% over 10 years
Ballinteer Educate Together National School Dublin 16Multi-denominational
399 pupils +121.7% over 10 years
Our Lady Good Counsel GNS Dun Laoghaire
398 pupils −13.5% over 10 years
Harolds Cross N S Dublin 6WDEIS
398 pupils +24.0% over 10 years
Corpus Christi N S Dublin 9
398 pupils −11.8% over 10 years
Holy Trinity Sen N S Dublin 13
397 pupils +14.4% over 10 years
S N Muire agus Iosef Dublin 13
396 pupils −7.9% over 10 years
Swords Educate Together NS SwordsMulti-denominational
394 pupils −10.7% over 10 years
Rush and Lusk Educate Together NS LuskMulti-denominational
393 pupils −2.2% over 10 years

Showing 25 of 227 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.

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