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SCOIL COLMCILLE SENIOR

Roll number: 19438W Coolevin, Ballybrack, Co. Dublin

School details

Address: Coolevin, Ballybrack, Co. Dublin (A96TN32)
Email: [email protected]
Phone: 012855527
Principal: Aidan Boyle
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Dun Laoghaire Rathdown
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: Senior
Planning area: Sallynoggin_Killiney_DLR

Preliminary data

The latest year shown (2025/26) is preliminary and subject to revision when the official enrolment figures are released by the Department of Education.

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1975/76: 149 in 1974/75 → 572, +423 pupils.
Biggest loss in a single year: 1980/81: 885 in 1978/79 → 498, -387 pupils.
Largest single-class increase: 4th Class in 2024/25 (34 → 47, +13).
Largest single-class decrease: 3rd Class in 2024/25 (43 → 29, -14).
Largest cohort-step gain: 3rd → 4th in 2024/25 (43 → 47, +4).
Largest cohort-step loss: 4th → 5th in 2024/25 (34 → 30, -4).
Overall: 149 (1974/75) → 147 (2025/26 (preliminary)), -2.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available years (2020/21–2024/25; preliminary year excluded from class stats).

Class	Min	Max	Mean	Years
3rd Class	29	47	38.4	5
4th Class	34	47	40.2	5
5th Class	30	45	36.8	5
6th Class	32	45	38.8	5
Total	141	885	267.6	42

Total enrolment over time

Total and gender trends use historical records where available. Class-level data starts in 2020/21.

Enrolment by gender over time

Enrolment by class over time

Raw data by year

Years marked (preliminary) are subject to revision when official data are published.

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	70	79	–	–	–	–	–	–	–	–	149
1975/76	–	–	–	–	–	–	–	–	–	–	572
1976/77	346	361	–	–	–	–	–	–	–	–	707
1977/78	390	427	–	–	–	–	–	–	–	–	817
1978/79	–	–	–	–	–	–	–	–	–	–	885
1980/81	253	245	–	–	–	–	–	–	–	–	498
1981/82	237	239	–	–	–	–	–	–	–	–	476
1982/83	243	259	–	–	–	–	–	–	–	–	502
1983/84	234	244	–	–	–	–	–	–	–	–	478
1993/94	104	123	–	–	–	–	–	–	–	–	227
1994/95	101	111	–	–	–	–	–	–	–	–	212
1995/96	102	109	–	–	–	–	–	–	–	–	211
1996/97	104	108	–	–	–	–	–	–	–	–	212
1997/98	112	111	–	–	–	–	–	–	–	–	223
1998/99	105	124	–	–	–	–	–	–	–	–	229
1999/00	82	116	–	–	–	–	–	–	–	–	198
2000/01	92	116	–	–	–	–	–	–	–	–	208
2001/02	96	120	–	–	–	–	–	–	–	–	216
2002/03	106	115	–	–	–	–	–	–	–	–	221
2003/04	104	122	–	–	–	–	–	–	–	–	226
2004/05	91	108	–	–	–	–	–	–	–	–	199
2005/06	82	105	–	–	–	–	–	–	–	–	187
2006/07	70	104	–	–	–	–	–	–	–	–	174
2007/08	62	115	–	–	–	–	–	–	–	–	177
2008/09	57	113	–	–	–	–	–	–	–	–	170
2009/10	59	118	–	–	–	–	–	–	–	–	177
2010/11	66	104	–	–	–	–	–	–	–	–	170
2011/12	73	92	–	–	–	–	–	–	–	–	165
2012/13	88	95	–	–	–	–	–	–	–	–	183
2013/14	95	98	–	–	–	–	–	–	–	–	193
2014/15	107	98	–	–	–	–	–	–	–	–	205
2015/16	98	102	–	–	–	–	–	–	–	–	200
2016/17	87	94	–	–	–	–	–	–	–	–	181
2017/18	80	83	–	–	–	–	–	–	–	–	163
2018/19	71	82	–	–	–	–	–	–	–	–	153
2019/20	66	75	–	–	–	–	–	–	–	–	141
2020/21	63	93	–	–	–	–	47	36	34	39	156
2021/22	62	93	–	–	–	–	38	46	37	32	155
2022/23	67	91	–	–	–	–	35	38	45	37	158
2023/24	74	90	–	–	–	–	43	34	38	45	164
2024/25	73	80	–	–	–	–	29	47	30	41	153
2025/26 (preliminary)	72	75	–	–	–	–	–	–	–	–	147