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S N CAITRIONA NAIONAIN

Roll number: 18362K Measc Avenue, Coolock, Dublin 5

School details

Address: Measc Avenue, Coolock, Dublin 5 (D05FC92)
Email: [email protected]
Phone: 018480142
Principal: Marie Dineen
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Dublin City Council
School patron: Archbishop of Dublin
School type: Ordinary
School level: Junior
Planning area: Killester_Raheny_Clontarf

Class size history

Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.

Average class size

14.83

2025/26

Mainstream classes

2025/26

Largest class group

2025/26

Classes with 30+ pupils

2025/26

Class group metrics trend

Class group metrics by year

Year	Mainstream class pupils	Mainstream classes	Average class size	Largest class	Classes 30+
2006/07	240	10	24.00	30	1
2007/08	235	10	23.50	27	0
2008/09	237	10	23.70	26	0
2009/10	241	10	24.10	29	0
2010/11	225	10	22.50	28	0
2011/12	215	9	23.89	27	0
2012/13	214	9	23.78	25	0
2013/14	223	9	24.78	28	0
2014/15	220	9	24.44	30	1
2015/16	217	9	24.11	29	0
2016/17	205	9	22.78	25	0
2017/18	221	10	22.10	24	0
2019/20	248	12	20.67	24	0
2020/21	221	12	18.42	23	0
2021/22	179	12	14.92	20	0
2022/23	173	11	15.73	19	0
2023/24	188	11	17.09	20	0
2024/25	194	12	16.17	19	0
2025/26	178	12	14.83	20	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2017/18: 205 in 2016/17 → 221, +16 pupils.
Biggest loss in a single year: 1978/79: 655 in 1977/78 → 570, -85 pupils.
Largest single-class increase: Senior Infants in 2023/24 (51 → 69, +18).
Largest single-class decrease: Senior Infants in 2021/22 (80 → 51, -29).
Largest cohort-step gain: SI → 1st in 2022/23 (51 → 56, +5).
Largest cohort-step loss: 1st → 2nd in 2021/22 (89 → 0, -89).
Overall: 792 (1974/75) → 178 (2025/26), -614.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available final by-standard years.

Class	Min	Max	Mean	Years
Junior Infants	49	70	58.3	6
Senior Infants	51	80	63.0	6
1st Class	49	89	67.5	6
2nd Class	0	0	0.0	1
3rd Class	0	0	0.0	1
4th Class	0	0	0.0	1
5th Class	0	0	0.0	1
6th Class	0	0	0.0	1
Total	173	792	341.8	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

Cohort progression

Base cohort:

Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).

Cohort 2020/21

JI 2020/21 52

-1

SI 2021/22 51

1st 2022/23 56

-56

2nd 2023/24 0

4th 2025/26 0

Cohort 2021/22

JI 2021/22 51

SI 2022/23 51

-2

1st 2023/24 49

-49

2nd 2024/25 0

3rd 2025/26 0

Cohort 2022/23

JI 2022/23 66

SI 2023/24 69

-6

1st 2024/25 63

-63

2nd 2025/26 0

Cohort 2023/24

JI 2023/24 70

-1

SI 2024/25 69

1st 2025/26 71

Cohort 2024/25

JI 2024/25 62

-4

SI 2025/26 58

Cohort 2025/26

JI 2025/26 49

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	439	353	–	–	–	–	–	–	–	–	792
1975/76	–	–	–	–	–	–	–	–	–	–	792
1976/77	405	324	–	–	–	–	–	–	–	–	729
1977/78	369	286	–	–	–	–	–	–	–	–	655
1978/79	317	253	–	–	–	–	–	–	–	–	570
1979/80	289	259	–	–	–	–	–	–	–	–	548
1980/81	284	245	–	–	–	–	–	–	–	–	529
1981/82	297	229	–	–	–	–	–	–	–	–	526
1982/83	297	229	–	–	–	–	–	–	–	–	526
1993/94	241	207	–	–	–	–	–	–	–	–	448
1994/95	225	192	–	–	–	–	–	–	–	–	417
1995/96	217	156	–	–	–	–	–	–	–	–	373
1996/97	207	155	–	–	–	–	–	–	–	–	362
1997/98	200	176	–	–	–	–	–	–	–	–	376
1998/99	189	155	–	–	–	–	–	–	–	–	344
1999/00	178	153	–	–	–	–	–	–	–	–	331
2000/01	182	147	–	–	–	–	–	–	–	–	329
2001/02	169	147	–	–	–	–	–	–	–	–	316
2002/03	151	131	–	–	–	–	–	–	–	–	282
2003/04	139	123	–	–	–	–	–	–	–	–	262
2004/05	139	123	–	–	–	–	–	–	–	–	262
2005/06	140	116	–	–	–	–	–	–	–	–	256
2006/07	126	120	–	–	–	–	–	–	–	–	246
2007/08	134	109	–	–	–	–	–	–	–	–	243
2008/09	127	116	–	–	–	–	–	–	–	–	243
2009/10	127	114	–	–	–	–	–	–	–	–	241
2010/11	114	111	–	–	–	–	–	–	–	–	225
2011/12	122	93	–	–	–	–	–	–	–	–	215
2012/13	120	94	–	–	–	–	–	–	–	–	214
2013/14	129	94	–	–	–	–	–	–	–	–	223
2014/15	116	104	–	–	–	–	–	–	–	–	220
2015/16	120	97	–	–	–	–	–	–	–	–	217
2016/17	108	97	–	–	–	–	–	–	–	–	205
2017/18	115	106	–	–	–	–	–	–	–	–	221
2018/19	126	110	–	–	–	–	–	–	–	–	236
2019/20	145	103	–	–	–	–	–	–	–	–	248
2020/21	126	95	52	80	89	–	–	–	–	–	221
2021/22	105	74	51	51	77	–	–	–	–	–	179
2022/23	105	68	66	51	56	–	–	–	–	–	173
2023/24	112	76	70	69	49	–	–	–	–	–	188
2024/25	114	80	62	69	63	–	–	–	–	–	194
2025/26	103	75	49	58	71	–	–	–	–	–	178