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OUR LADY GOOD COUNSEL GNS

Roll number: 19321B Woodley Road, Johnstown, Dun Laoghaire, Co. Dublin

School details

Address: Woodley Road, Johnstown, Dun Laoghaire, Co. Dublin (A96A033)
Email: [email protected]
Phone: 012853775
Principal: Caroline Quinn
Ethos: Catholic
DEIS: N
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: All-Through School
Planning area: Sallynoggin_Killiney_DLR

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

23.75

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	434	16	27.12	30	2
2007/08	431	16	26.94	29	0
2008/09	429	16	26.81	29	0
2009/10	447	16	27.94	29	0
2010/11	439	16	27.44	29	0
2011/12	442	16	27.62	29	0
2012/13	435	16	27.19	30	2
2013/14	438	16	27.38	30	2
2014/15	440	16	27.50	30	2
2015/16	443	16	27.69	30	1
2016/17	442	16	27.62	30	1
2017/18	435	17	25.59	29	0
2019/20	429	17	25.24	28	0
2020/21	415	16	25.94	29	0
2021/22	400	16	25.00	29	0
2022/23	392	16	24.50	29	0
2023/24	387	16	24.19	29	0
2024/25	372	16	23.25	28	0
2025/26	380	16	23.75	29	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1978/79: 591 in 1977/78 → 635, +44 pupils.
Biggest loss in a single year: 1993/94: 613 in 1983/84 → 540, -73 pupils.
Largest single-class increase: 1st Class in 2023/24 (36 → 46, +10).
Largest single-class decrease: 1st Class in 2022/23 (49 → 36, -13).
Largest cohort-step gain: JI → SI in 2025/26 (38 → 52, +14).
Largest cohort-step loss: SI → 1st in 2022/23 (39 → 36, -3).
Overall: 484 (1974/75) → 398 (2025/26), -86.

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	37	47	41.3	6
Senior Infants	39	52	45.2	6
1st Class	36	56	46.2	6
2nd Class	39	54	47.7	6
3rd Class	40	56	50.5	6
4th Class	47	56	53.2	6
5th Class	53	58	54.8	6
6th Class	51	58	55.2	6
Total	389	635	485.2	43

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 40

-1

SI 2021/22 39

-3

1st 2022/23 36

2nd 2023/24 39

3rd 2024/25 40

4th 2025/26 47

Cohort 2021/22

JI 2021/22 43

SI 2022/23 44

1st 2023/24 46

-1

2nd 2024/25 45

3rd 2025/26 50

Cohort 2022/23

JI 2022/23 43

-2

SI 2023/24 41

1st 2024/25 42

2nd 2025/26 48

Cohort 2023/24

JI 2023/24 47

-2

SI 2024/25 45

1st 2025/26 48

Cohort 2024/25

JI 2024/25 38

+14

SI 2025/26 52

Cohort 2025/26

JI 2025/26 37

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	484	–	–	–	–	–	–	–	–	–	484
1975/76	–	–	–	–	–	–	–	–	–	–	518
1976/77	554	–	–	–	–	–	–	–	–	–	554
1977/78	591	–	–	–	–	–	–	–	–	–	591
1978/79	–	–	–	–	–	–	–	–	–	–	635
1979/80	601	–	–	–	–	–	–	–	–	–	601
1980/81	597	–	–	–	–	–	–	–	–	–	597
1981/82	585	–	–	–	–	–	–	–	–	–	585
1982/83	584	–	–	–	–	–	–	–	–	–	584
1983/84	613	–	–	–	–	–	–	–	–	–	613
1993/94	540	–	–	–	–	–	–	–	–	–	540
1994/95	539	–	–	–	–	–	–	–	–	–	539
1995/96	533	–	–	–	–	–	–	–	–	–	533
1996/97	544	–	–	–	–	–	–	–	–	–	544
1997/98	531	–	–	–	–	–	–	–	–	–	531
1998/99	509	–	–	–	–	–	–	–	–	–	509
1999/00	485	–	–	–	–	–	–	–	–	–	485
2000/01	466	–	–	–	–	–	–	–	–	–	466
2001/02	454	–	–	–	–	–	–	–	–	–	454
2002/03	457	–	–	–	–	–	–	–	–	–	457
2003/04	446	–	–	–	–	–	–	–	–	–	446
2004/05	444	–	–	–	–	–	–	–	–	–	444
2005/06	449	–	–	–	–	–	–	–	–	–	449
2006/07	434	–	–	–	–	–	–	–	–	–	434
2007/08	431	–	–	–	–	–	–	–	–	–	431
2008/09	429	–	–	–	–	–	–	–	–	–	429
2009/10	447	–	–	–	–	–	–	–	–	–	447
2010/11	439	–	–	–	–	–	–	–	–	–	439
2011/12	442	14	–	–	–	–	–	–	–	–	456
2012/13	443	7	–	–	–	–	–	–	–	–	450
2013/14	446	9	–	–	–	–	–	–	–	–	455
2014/15	448	9	–	–	–	–	–	–	–	–	457
2015/16	451	9	–	–	–	–	–	–	–	–	460
2016/17	450	8	–	–	–	–	–	–	–	–	458
2017/18	441	12	–	–	–	–	–	–	–	–	453
2018/19	435	10	–	–	–	–	–	–	–	–	445
2019/20	436	10	–	–	–	–	–	–	–	–	446
2020/21	424	9	40	50	56	51	54	56	54	54	433
2021/22	407	9	43	39	49	54	52	54	53	56	416
2022/23	396	9	43	44	36	49	56	54	54	56	405
2023/24	392	10	47	41	46	39	51	53	54	56	402
2024/25	375	14	38	45	42	45	40	55	56	51	389
2025/26	385	13	37	52	48	48	50	47	58	58	398