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459 schools in Co. Dublin · 2025/26

pupils: 132,941
junior infants: 15,292
in 41 all-Irish schools: 10,240 7.7%
class teachers · 45 gained one · 82 lost one since 2024/25: 5,843 +331 since 2015/16
together since 2015/16 (about this figure) The 414 schools with figures for both years had 130,504 pupils in 2015/16 and have 119,663 now. Schools that have closed, and newer schools, aren’t counted.: −8.3%

Over 10 years

67 grew · 152 steady · 195 fell · 45 newer

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St Patricks NS Dublin 15
867 pupils +19.1% over 10 years
St Oliver Plunkett Malahide
838 pupils −9.6% over 10 years
St Brigids MXD N S Dublin 15
834 pupils −12.2% over 10 years
S N Naomh Mochta Dublin 15
805 pupils −8.8% over 10 years
St Colmcille Senior N S Dublin 16
744 pupils +4.9% over 10 years
Scoil Colmcille Naofa Dublin 16
721 pupils −11.5% over 10 years
Scoil Choilm Community NS Dublin 15Multi-denominationalDEIS
698 pupils −2.6% over 10 years
Rush NS Rush
698 pupils −6.6% over 10 years
Holy Family National School Rathcoole
671 pupils +6.8% over 10 years
S N Naomh Mhuire Saggart
666 pupils +7.2% over 10 years
John Paul II N S Malahide
663 pupils −2.5% over 10 years
The Harold School Glasthule
642 pupils −5.6% over 10 years
Scoil Naomh Mearnog Portmarnock
638 pupils +28.4% over 10 years
Sacred Heart N S Dublin 15
632 pupils −25.3% over 10 years
Caisleain Nua Liamhna Newcastle
626 pupils +30.1% over 10 years
Holy Family Senior N S Swords
624 pupils +0.3% over 10 years
St Benedicts National School Dublin 15
622 pupils −6.3% over 10 years
Scoil Thomais Dublin 15
622 pupils −10.2% over 10 years
Scoil Aine Naofa Lucan
614 pupils +18.5% over 10 years
Holywell Educate Together National School SwordsMulti-denominational
613 pupils +22.8% over 10 years
St Fiachras Sen N S Dublin 5
609 pupils −3.8% over 10 years
Scoil Naomh Lucais Dublin 15
602 pupils +11.3% over 10 years
St Christopher's NS Dublin 4Some subjects through IrishDEIS
598 pupils From 2019/20
ST Olaf's National School Dublin 16
591 pupils +30.5% over 10 years
St. Louis National School Dublin 6
590 pupils From 2023/24
St Marys Central N S Dublin 4
587 pupils +95.0% over 10 years
Holy Trinity National School Dublin 18
586 pupils +37.6% over 10 years
Scoil Ghrainne Community National School Dublin 15Multi-denominational
585 pupils −13.2% over 10 years
Carysfort NS Blackrock
583 pupils +7.0% over 10 years
Hansfield Educate Together National School Dublin 15Multi-denominational
575 pupils +114.6% over 10 years
St Thomas Junior National School Lucan
573 pupils +3.1% over 10 years
Holy Family Junior N S Swords
565 pupils −18.6% over 10 years
Scoil Mhuire LucanGirls
558 pupils −18.4% over 10 years
Scoil Fhiachra Soisir Dublin 5
557 pupils −24.7% over 10 years
Stepaside Educate Together National School Dublin 18Multi-denominational
542 pupils +351.7% over 10 years
St Pius X G N S Dublin 6WGirls
540 pupils +3.1% over 10 years
St Ciarans N S Dublin 15
530 pupils −27.5% over 10 years
Brackenstown Senior N S Swords
530 pupils −6.2% over 10 years
Holy Rosary Primary School Dublin 24DEIS
525 pupils −12.4% over 10 years
Dublin 7 Educate Together NS Dublin 7Multi-denominational
515 pupils +16.3% over 10 years
Tyrrelstown Educate Together National School Dublin 15Multi-denominational
511 pupils −13.4% over 10 years
St Pius X N S Boys Dublin 6Boys
511 pupils −3.4% over 10 years
Lucan B N S LucanBoys
501 pupils −0.8% over 10 years
St Brigids Girls N S Dublin 18Girls
499 pupils −8.4% over 10 years
Scoil Padraig Naofa B BlackrockBoys
499 pupils −22.9% over 10 years
St Cronans Junior National School Swords
498 pupils −21.6% over 10 years
St Marks Sen NS Dublin 24DEIS
497 pupils −3.5% over 10 years
Holy Child National School Dublin 9
495 pupils +23.1% over 10 years
Scoil Lorcáin Baile na ManachGaelscoil
485 pupils −0.6% over 10 years
St Marys N S Lucan
483 pupils +14.2% over 10 years
Mother of Divine Grace Dublin 11DEIS
480 pupils −2.8% over 10 years
St Patricks GNS Dublin 18Girls
478 pupils −15.2% over 10 years
St Canices G N S Dublin 11GirlsDEIS
473 pupils +4.2% over 10 years
St Patrick GNS Dublin 16
472 pupils −8.5% over 10 years
Our Lady Queen of Apostles Dublin 22DEIS
469 pupils −15.9% over 10 years
Griffeen Valley Educate Together NS LucanMulti-denominational
466 pupils −4.3% over 10 years
Sacred Heart N S Dublin 22
463 pupils −1.7% over 10 years
Marley Grange NS Dublin 16
461 pupils −7.6% over 10 years
Bishop Galvin NS Dublin 6w
461 pupils −2.9% over 10 years
St Patricks N School Dublin 9
449 pupils −8.4% over 10 years
St Marks Junior Mixed Dublin 24DEIS
449 pupils −22.0% over 10 years
Ladyswell N S Dublin 15DEIS
447 pupils −16.6% over 10 years
Gaelscoil Chluain Dolcain Baile Átha Cliath 22Gaelscoil
445 pupils +26.8% over 10 years
Clochar Loreto N S Dublin 14
445 pupils −13.6% over 10 years
Gaelscoil na Fuinseoige Bác 14GaelscoilMulti-denominational
441 pupils Opened 2016/17
Gaelscoil Bhrian Bóroimhe SordGaelscoilInter-denominational
441 pupils −7.0% over 10 years
St Annes MXD N S Shankill
440 pupils −13.9% over 10 years
Bishop Shanahan NS Dublin 6W
437 pupils −8.0% over 10 years
St. Francis of Assisi National School Dublin 13
434 pupils +11.3% over 10 years
S N Cnoc Ainbhil StillorganGirls
434 pupils −6.9% over 10 years
Assumption Junior School Dublin 12DEIS
434 pupils −17.8% over 10 years
St Fintans NS Dublin 13
431 pupils −8.3% 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
Oatlands Primary School, An Edmund Rice School Blackrock
428 pupils −0.7% over 10 years
St Molaga Senior NS Balbriggan
422 pupils −5.6% 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
Islamic National School Dublin 14Muslim
414 pupils +39.9% over 10 years
Donabate/Portrane Educate Together NS DonabateMulti-denominational
414 pupils −16.0% over 10 years
St Laurence's National School Dublin 13
413 pupils −5.1% over 10 years
S N Lusca Lusk
413 pupils −51.2% 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
St Dominic's National School Dublin 24DEIS
410 pupils +40.4% over 10 years
Scoil na nAingeal Blackrock
410 pupils −11.4% over 10 years
Glasnevin Educate Together NS Dublin 11Multi-denominational
410 pupils +73.7% over 10 years
St Peters NS Dublin 7DEIS
409 pupils −8.1% 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
Scoil na Croi Naofa Dublin 11Boys
404 pupils −12.9% over 10 years
Griffith Barracks Multi D School Dublin 8Multi-denominational
403 pupils +60.6% over 10 years
Gaelscoil Thaobh na Coille Baile Átha Cliath 18Gaelscoil
402 pupils −9.0% 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
St Ronans N S Dublin 22DEIS
396 pupils −8.8% 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
North Dublin Muslim NS Dublin 7Muslim
391 pupils +64.3% over 10 years
Canal Way Educate Together National School Dublin 8Multi-denominational
391 pupils +155.6% over 10 years
S N Naomh Lorcan StillorganBoys
390 pupils −12.2% over 10 years
Our Lady of Good Counsel Boys N S Dún LaoghaireBoys
389 pupils −10.0% over 10 years
St Francis Xavier Senior N S Dublin 15
388 pupils +19.0% over 10 years
Broombridge Educate Together National School Dublin 7Multi-denominationalDEIS
387 pupils Opened 2016/17
Scoil Maelruain Senior Test Address
386 pupils +1.3% over 10 years
Pelletstown ETNS Dublin 15Multi-denominational
386 pupils +757.8% over 10 years
Taney N S Dublin 14Church of Ireland
384 pupils −12.3% over 10 years
Stanhope Street Primary School Dublin 7DEIS
384 pupils +15.3% over 10 years
Lucan Educate Together NS LucanMulti-denominational
384 pupils −13.1% over 10 years
St Martin de Porres N S Dublin 24
383 pupils −12.6% over 10 years
Esker Educate Together NS LucanMulti-denominationalDEIS
382 pupils −11.2% over 10 years
St Helens Senior N S Portmarnock
381 pupils +42.7% over 10 years
St Raphaels NS Dublin 10DEIS
380 pupils +50.8% over 10 years
S N Eoin Baisde Girls Senior Dublin 3Girls
380 pupils −8.4% over 10 years
Gaelscoil an Duinninigh SordGaelscoil
380 pupils −10.4% over 10 years
St Columbas Con G & I Dublin 9
378 pupils −5.0% over 10 years
Scoil Treasa Firhouse Dublin 24
377 pupils −3.6% over 10 years
Malahide / Portmarnock Educate Together National School Dublin 17Multi-denominational
377 pupils +947.2% over 10 years
S N C Naomh Padraig DonabateGirls
376 pupils −12.1% over 10 years
Gaelscoil Eiscir Riada LeamhcánGaelscoil
376 pupils −22.0% over 10 years
City West Educate Together National School Dublin 24Multi-denominational
376 pupils +83.4% over 10 years
St Raphaelas N S BlackrockGirls
375 pupils −20.4% over 10 years
Lucan Community National School LucanMulti-denominational
375 pupils +443.5% over 10 years
Bracken Educate Together NS BalbrigganMulti-denominationalDEIS
375 pupils −8.1% over 10 years
Ballyroan B N S Dublin 16Boys
375 pupils +5.3% over 10 years
St Andrews N S LucanChurch of Ireland
374 pupils +9.0% over 10 years
Castleknock Educate Together NS Dublin 15Multi-denominational
374 pupils −14.4% over 10 years
Belgard Heights N S Dublin 24DEIS
372 pupils −2.1% over 10 years
St Attractas Senior N S Dublin 16
371 pupils +6.9% over 10 years
St Patricks Boys National School DonabateBoys
370 pupils −3.4% over 10 years
St Josephs Dun LaoghaireDEIS
370 pupils +174.1% over 10 years
St Brigids Convent N S Dublin 5Girls
369 pupils −14.4% over 10 years
Scoil Maelruain Junior Dublin 24
369 pupils −21.2% over 10 years
Scoil Mhuire Boys Dublin 14Boys
367 pupils −19.9% over 10 years
Presentation Primary School Dublin 6WGirls
367 pupils −37.7% over 10 years
Gaelscoil Naomh Padraig LeamhcánGaelscoil
367 pupils −23.1% over 10 years
Lusk Junior National School St Maccullins Lusk
366 pupils From 2018/19
SN N Sailbheastar Nfa Malahide
365 pupils −18.9% over 10 years
Scoil Bhride Dublin 13
365 pupils −3.9% over 10 years
S N Naomh Teresa BalbrigganDEIS
364 pupils −14.8% over 10 years
St Josephs Boys N S Dublin 6Boys
363 pupils −24.5% over 10 years
Scoil Chormaic BalbrigganMulti-denominational
362 pupils −15.2% over 10 years

459 schools in Co. Dublin
School	Pupils	Since 2015/16	Average class	Class teacherschange on 2024/25	Junior infants
St Patricks NS Dublin 15 · Roll 20130B	867	+19.1%	27.1	32	101
St Oliver Plunkett Malahide, Co. Dublin · Roll 17914S	838	−9.6%	24.9	33	90
St Brigids MXD N S Dublin 15 · Roll 00697S	834	−12.2%	25.7	32	94
S N Naomh Mochta Dublin 15 · Roll 18778S	805	−8.8%	25.0	32	91
St Colmcille Senior N S Dublin 16 · Roll 19742C	744	+4.9%	25.7	29	0
Scoil Colmcille Naofa Dublin 16 · Roll 19474D	721	−11.5%	24.7	29	179
Scoil Choilm Community NS Dublin 15 · Roll 20241K Multi-denominationalDEIS	698	−2.6%	22.1	31	54
Rush NS Rush, Co. Dublin · Roll 19660A	698	−6.6%	24.1	29	98
Holy Family National School Rathcoole, Co. Dublin · Roll 13217W	671	+6.8%	28.0	24	72
S N Naomh Mhuire Saggart, Co. Dublin · Roll 17055T	666	+7.2%	26.8	24	74
John Paul II N S Malahide, Co. Dublin · Roll 19627C	663	−2.5%	25.5	26	0
The Harold School Glasthule, Co. Dublin · Roll 20141G	642	−5.6%	23.6	27	83
Scoil Naomh Mearnog Portmarnock, Co. Dublin · Roll 10296G	638	+28.4%	26.3	24	81
Sacred Heart N S Dublin 15 · Roll 19755L	632	−25.3%	21.9	−2 on 2024/2528	68
Caisleain Nua Liamhna Newcastle, Co. Dublin · Roll 16461C	626	+30.1%	25.6	24	77
Holy Family Senior N S Swords, Co. Dublin · Roll 19877C	624	+0.3%	25.2	−1 on 2024/2524	0
St Benedicts National School Dublin 15 · Roll 20231H	622	−6.3%	25.9	24	71
Scoil Thomais Dublin 15 · Roll 19769W	622	−10.2%	22.8	27	64
Scoil Aine Naofa Lucan, Co. Dublin · Roll 19676P	614	+18.5%	26.4	23	0
Holywell Educate Together National School Swords, Co. Dublin · Roll 20348F Multi-denominational	613	+22.8%	24.3	24	70
St Fiachras Sen N S Dublin 5 · Roll 19628E	609	−3.8%	25.4	−1 on 2024/2524	0
Scoil Naomh Lucais Dublin 15 · Roll 16675V	602	+11.3%	25.1	24	73
St Christopher's NS Dublin 4 · Roll 20545H Some subjects through IrishDEIS	598	–	24.7	24	73
ST Olaf's National School Dublin 16 · Roll 19319O	591	+30.5%	25.7	+1 on 2024/2523	74
St. Louis National School Dublin 6 · Roll 20571I	590	–	22.5	26	46
St Marys Central N S Dublin 4 · Roll 19727G	587	+95.0%	23.4	25	72
Holy Trinity National School Dublin 18 · Roll 20190T	586	+37.6%	24.4	24	75
Scoil Ghrainne Community National School Dublin 15 · Roll 20247W Multi-denominational	585	−13.2%	23.9	24	71
Carysfort NS Blackrock, Co. Dublin · Roll 14586M	583	+7.0%	24.3	24	82
Hansfield Educate Together National School Dublin 15 · Roll 20383H Multi-denominational	575	+114.6%	23.5	24	62
St Thomas Junior National School Lucan, Co. Dublin · Roll 19542R	573	+3.1%	25.8	+1 on 2024/2522	150
Holy Family Junior N S Swords, Co. Dublin · Roll 19721R	565	−18.6%	23.5	24	140
Scoil Mhuire Lucan, Co. Dublin · Roll 13447Q Girls	558	−18.4%	23.7	+1 on 2024/2523	64
Scoil Fhiachra Soisir Dublin 5 · Roll 19496N	557	−24.7%	22.7	24	126
Stepaside Educate Together National School Dublin 18 · Roll 20401G Multi-denominational	542	+351.7%	22.1	+2 on 2024/2524	55
St Pius X G N S Dublin 6W · Roll 19178W Girls	540	+3.1%	27.0	20	53
St Ciarans N S Dublin 15 · Roll 19644C	530	−27.5%	22.5	−1 on 2024/2523	54
Brackenstown Senior N S Swords, Co. Dublin · Roll 19535U	530	−6.2%	22.3	23	0
Holy Rosary Primary School Dublin 24 · Roll 19878E DEIS	525	−12.4%	21.9	24	60
Dublin 7 Educate Together NS Dublin 7 · Roll 20131D Multi-denominational	515	+16.3%	23.9	21	69
Tyrrelstown Educate Together National School Dublin 15 · Roll 20201V Multi-denominational	511	−13.4%	23.8	21	57
St Pius X N S Boys Dublin 6 · Roll 19177U Boys	511	−3.4%	25.6	20	53
Lucan B N S Lucan, Co. Dublin · Roll 00714P Boys	501	−0.8%	23.6	21	53
St Brigids Girls N S Dublin 18 · Roll 16353W Girls	499	−8.4%	24.9	20	43
Scoil Padraig Naofa B Blackrock, Co. Dublin · Roll 19258U Boys	499	−22.9%	23.5	−1 on 2024/2521	53
St Cronans Junior National School Swords, Co. Dublin · Roll 19456B	498	−21.6%	24.3	−1 on 2024/2520	123
St Marks Sen NS Dublin 24 · Roll 19390U DEIS	497	−3.5%	23.1	21	0
Holy Child National School Dublin 9 · Roll 20338C	495	+23.1%	24.1	20	92
Scoil Lorcáin Baile na Manach, Co. Dublin · Roll 18451J Gaelscoil	485	−0.6%	25.5	19	60
St Marys N S Lucan, Co. Dublin · Roll 19817H	483	+14.2%	24.8	19	68
Mother of Divine Grace Dublin 11 · Roll 20059V DEIS	480	−2.8%	23.4	20	55
St Patricks GNS Dublin 18 · Roll 19259W Girls	478	−15.2%	23.9	−1 on 2024/2520	51
St Canices G N S Dublin 11 · Roll 18683H GirlsDEIS	473	+4.2%	19.7	24	52
St Patrick GNS Dublin 16 · Roll 19114T	472	−8.5%	23.4	−1 on 2024/2520	91
Our Lady Queen of Apostles Dublin 22 · Roll 19566I DEIS	469	−15.9%	24.7	19	51
Griffeen Valley Educate Together NS Lucan, Co. Dublin · Roll 20166W Multi-denominational	466	−4.3%	22.8	20	65
Sacred Heart N S Dublin 22 · Roll 19799I	463	−1.7%	24.7	18	57
Marley Grange NS Dublin 16 · Roll 19574H	461	−7.6%	24.3	19	54
Bishop Galvin NS Dublin 6w · Roll 19494J	461	−2.9%	25.3	18	0
St Patricks N School Dublin 9 · Roll 11525A	449	−8.4%	23.8	18	64
St Marks Junior Mixed Dublin 24 · Roll 19472W DEIS	449	−22.0%	21.8	20	96
Ladyswell N S Dublin 15 · Roll 19850F DEIS	447	−16.6%	18.6	23	58
Gaelscoil Chluain Dolcain Baile Átha Cliath 22, Co. Dublin · Roll 19855P Gaelscoil	445	+26.8%	26.2	17	60
Clochar Loreto N S Dublin 14 · Roll 00729F	445	−13.6%	22.9	19	40
Gaelscoil na Fuinseoige Bác 14, Co. Dublin · Roll 20487T GaelscoilMulti-denominational	441	–	25.6	+1 on 2024/2517	53
Gaelscoil Bhrian Bóroimhe Sord, Co. Dublin · Roll 20095C GaelscoilInter-denominational	441	−7.0%	27.6	16	58
St Annes MXD N S Shankill, Co. Dublin · Roll 19888H	440	−13.9%	24.1	18	49
Bishop Shanahan NS Dublin 6W · Roll 19658N	437	−8.0%	24.2	18	104
St. Francis of Assisi National School Dublin 13 · Roll 20304I	434	+11.3%	27.1	16	49
S N Cnoc Ainbhil Stillorgan, Co. Dublin · Roll 17979A Girls	434	−6.9%	24.1	−1 on 2024/2518	46
Assumption Junior School Dublin 12 · Roll 20450T DEIS	434	−17.8%	23.4	+1 on 2024/2518	119
St Fintans NS Dublin 13 · Roll 19549I	431	−8.3%	23.9	+1 on 2024/2518	46
Adamstown Castle Educate Together National School Adamstown, Co. Dublin · Roll 20268H Multi-denominational	431	+8.0%	26.2	16	52
S N San Treasa Mount Merrion, Co. Dublin · Roll 18647D	430	−5.7%	26.9	16	58
Mary Mother of Hope Senior NS Dublin 15 · Roll 20137P	429	−7.7%	26.5	16	0
Oatlands Primary School, An Edmund Rice School Blackrock, Co. Dublin · Roll 17954H	428	−0.7%	25.2	17	55
St Molaga Senior NS Balbriggan, Co. Dublin · Roll 16970A	422	−5.6%	23.8	17	0
St. John the Evangelist National School Adamstown Castle, Co. Dublin · Roll 20194E	417	+16.5%	25.9	16	37
Lucan East ETNS Lucan, Co. Dublin · Roll 20303G Multi-denominationalDEIS	416	−10.2%	25.2	16	48
Monkstown Eucate Together NS Dun Laoghaire, Co. Dublin · Roll 20060G Multi-denominational	415	−5.3%	25.6	16	49
Islamic National School Dublin 14 · Roll 19949B Muslim	414	+39.9%	24.0	17	55
Donabate/Portrane Educate Together NS Donabate, Co. Dublin · Roll 20161M Multi-denominational	414	−16.0%	25.1	16	47
St Laurence's National School Dublin 13 · Roll 20437E	413	−5.1%	24.3	−1 on 2024/2517	36
S N Lusca Lusk, Co. Dublin · Roll 17961E	413	−51.2%	24.3	17	0
Citywest & Saggart Community National School Dublin 24 · Roll 20398U Multi-denominational	413	+90.3%	25.1	16	47
Belmayne Educate Together National School Dublin 13 · Roll 20308Q Multi-denominationalDEIS	413	+4.8%	25.8	16	52
St Dominic's National School Dublin 24 · Roll 20468P DEIS	410	+40.4%	18.1	22	50
Scoil na nAingeal Blackrock, Co. Dublin · Roll 19335M	410	−11.4%	24.1	17	46
Glasnevin Educate Together NS Dublin 11 · Roll 20168D Multi-denominational	410	+73.7%	24.9	16	53
St Peters NS Dublin 7 · Roll 20091R DEIS	409	−8.1%	22.7	18	55
Our lady's Grove Primary School Dublin 14 · Roll 19374W	409	−6.2%	25.6	16	45
Grace Park Educate Together National School Dublin 9 · Roll 20486R Multi-denominational	409	–	24.8	16	47
St Brigids Convent Dublin 11 · Roll 16577V Girls	406	−12.5%	25.4	−1 on 2024/2516	38
St Brigids Boys N S Dublin 18 · Roll 16352U Boys	406	−20.9%	25.4	16	49
Scoil na Croi Naofa Dublin 11 · Roll 04992R Boys	404	−12.9%	23.1	17	43
Griffith Barracks Multi D School Dublin 8 · Roll 20012S Multi-denominational	403	+60.6%	25.2	+1 on 2024/2516	51
Gaelscoil Thaobh na Coille Baile Átha Cliath 18, Co. Dublin · Roll 20020R Gaelscoil	402	−9.0%	23.6	+1 on 2024/2517	50
Ballinteer Educate Together National School Dublin 16 · Roll 20400E Multi-denominational	399	+121.7%	24.2	16	47
Our Lady Good Counsel GNS Dun Laoghaire, Co. Dublin · Roll 19321B	398	−13.5%	23.8	16	37
Harolds Cross N S Dublin 6W · Roll 19924I DEIS	398	+24.0%	24.9	16	52
Corpus Christi N S Dublin 9 · Roll 16860Q	398	−11.8%	24.4	16	46
Holy Trinity Sen N S Dublin 13 · Roll 19406J	397	+14.4%	24.1	16	0
St Ronans N S Dublin 22 · Roll 19707A DEIS	396	−8.8%	20.8	−1 on 2024/2519	52
S N Muire agus Iosef Dublin 13 · Roll 19533Q	396	−7.9%	24.8	16	0
Swords Educate Together NS Swords, Co. Dublin · Roll 20145O Multi-denominational	394	−10.7%	23.9	16	48
Rush and Lusk Educate Together NS Lusk, Co. Dublin · Roll 20176C Multi-denominational	393	−2.2%	23.9	16	38
North Dublin Muslim NS Dublin 7 · Roll 20152L Muslim	391	+64.3%	24.1	16	46
Canal Way Educate Together National School Dublin 8 · Roll 20430N Multi-denominational	391	+155.6%	24.4	16	49
S N Naomh Lorcan Stillorgan, Co. Dublin · Roll 16893I Boys	390	−12.2%	24.4	−1 on 2024/2516	50
Our Lady of Good Counsel Boys N S Dún Laoghaire, Co. Dublin · Roll 19320W Boys	389	−10.0%	24.3	16	48
St Francis Xavier Senior N S Dublin 15 · Roll 19470S	388	+19.0%	23.3	+1 on 2024/2516	0
Broombridge Educate Together National School Dublin 7 · Roll 20453C Multi-denominationalDEIS	387	–	23.4	16	40
Scoil Maelruain Senior Test Address, Co. Dublin · Roll 19463V	386	+1.3%	24.1	16	0
Pelletstown ETNS Dublin 15 · Roll 20392I Multi-denominational	386	+757.8%	23.4	16	48
Taney N S Dublin 14 · Roll 15284B Church of Ireland	384	−12.3%	24.0	16	47
Stanhope Street Primary School Dublin 7 · Roll 09932B DEIS	384	+15.3%	18.6	20	49
Lucan Educate Together NS Lucan, Co. Dublin · Roll 20066S Multi-denominational	384	−13.1%	23.2	16	48
St Martin de Porres N S Dublin 24 · Roll 19617W	383	−12.6%	23.2	16	39
Esker Educate Together NS Lucan, Co. Dublin · Roll 20274C Multi-denominationalDEIS	382	−11.2%	23.6	16	45
St Helens Senior N S Portmarnock, Co. Dublin · Roll 19762I	381	+42.7%	24.5	−1 on 2024/2515	0
St Raphaels NS Dublin 10 · Roll 19663G DEIS	380	+50.8%	19.0	20	44
S N Eoin Baisde Girls Senior Dublin 3 · Roll 17148D Girls	380	−8.4%	25.3	−1 on 2024/2515	0
Gaelscoil an Duinninigh Sord, Co. Dublin · Roll 19898K Gaelscoil	380	−10.4%	23.8	16	50
St Columbas Con G & I Dublin 9 · Roll 16659A	378	−5.0%	23.6	+1 on 2024/2516	45
Scoil Treasa Firhouse Dublin 24 · Roll 19565G	377	−3.6%	23.3	16	0
Malahide / Portmarnock Educate Together National School Dublin 17 · Roll 20445D Multi-denominational	377	+947.2%	23.6	16	31
S N C Naomh Padraig Donabate, Co. Dublin · Roll 18412W Girls	376	−12.1%	23.5	16	36
Gaelscoil Eiscir Riada Leamhcán, Co. Dublin · Roll 20223I Gaelscoil	376	−22.0%	23.2	16	41
City West Educate Together National School Dublin 24 · Roll 20402I Multi-denominational	376	+83.4%	22.8	16	50
St Raphaelas N S Blackrock, Co. Dublin · Roll 17470I Girls	375	−20.4%	25.0	−1 on 2024/2515	21
Lucan Community National School Lucan, Co. Dublin · Roll 20426W Multi-denominational	375	+443.5%	22.8	16	41
Bracken Educate Together NS Balbriggan, Co. Dublin · Roll 20282B Multi-denominationalDEIS	375	−8.1%	18.8	19	39
Ballyroan B N S Dublin 16 · Roll 03359N Boys	375	+5.3%	23.4	16	0
St Andrews N S Lucan, Co. Dublin · Roll 12014D Church of Ireland	374	+9.0%	22.6	16	34
Castleknock Educate Together NS Dublin 15 · Roll 20098I Multi-denominational	374	−14.4%	22.6	16	40
Belgard Heights N S Dublin 24 · Roll 19541P DEIS	372	−2.1%	22.1	16	38
St Attractas Senior N S Dublin 16 · Roll 19716B	371	+6.9%	24.3	15	0
St Patricks Boys National School Donabate, Co. Dublin · Roll 16267G Boys	370	−3.4%	24.3	15	51
St Josephs Dun Laoghaire, Co. Dublin · Roll 19938T DEIS	370	+174.1%	21.4	17	35
St Brigids Convent N S Dublin 5 · Roll 16792C Girls	369	−14.4%	22.7	16	40
Scoil Maelruain Junior Dublin 24 · Roll 19462T	369	−21.2%	22.7	16	86
Scoil Mhuire Boys Dublin 14 · Roll 19446V Boys	367	−19.9%	22.9	−1 on 2024/2516	40
Presentation Primary School Dublin 6W · Roll 13612F Girls	367	−37.7%	22.6	−2 on 2024/2516	20
Gaelscoil Naomh Padraig Leamhcán, Co. Dublin · Roll 19940G Gaelscoil	367	−23.1%	22.6	16	47
Lusk Junior National School St Maccullins Lusk, Co. Dublin · Roll 20509D	366	–	22.9	16	77
SN N Sailbheastar Nfa Malahide, Co. Dublin · Roll 17928G	365	−18.9%	24.3	15	105
Scoil Bhride Dublin 13 · Roll 19473B	365	−3.9%	22.0	16	78
S N Naomh Teresa Balbriggan, Co. Dublin · Roll 19515O DEIS	364	−14.8%	22.3	16	33
St Josephs Boys N S Dublin 6 · Roll 09750S Boys	363	−24.5%	22.7	16	34
Scoil Chormaic Balbriggan, Co. Dublin · Roll 20269J Multi-denominational	362	−15.2%	21.2	16	31

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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.