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Mary, Help of Christians G.N.S.

Roll number: 17367P Navan Road, Dublin 7

School details

Address: Navan Road, Dublin 7 (D07EH68)
Email: [email protected]
Phone: 018380471
Principal: Renee Moran
Ethos: Catholic
DEIS: N
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: All-Through School
Planning area: Cabra_Phibsboro_D7

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

23.47

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	438	16	27.38	30	3
2007/08	446	16	27.88	31	4
2008/09	439	16	27.44	31	5
2009/10	441	16	27.56	31	2
2010/11	435	16	27.19	31	2
2011/12	410	16	25.62	29	0
2012/13	425	16	26.56	31	4
2013/14	430	16	26.88	30	3
2014/15	435	16	27.19	30	3
2015/16	428	16	26.75	30	2
2016/17	423	16	26.44	31	2
2017/18	421	16	26.31	31	2
2019/20	435	16	27.19	31	2
2020/21	425	16	26.56	30	1
2021/22	406	16	25.38	30	1
2022/23	386	16	24.12	28	0
2023/24	374	16	23.38	27	0
2024/25	353	16	22.06	27	0
2025/26	352	15	23.47	28	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1993/94: 338 in 1982/83 → 380, +42 pupils.
Biggest loss in a single year: 1976/77: 598 in 1975/76 → 548, -50 pupils.
Largest single-class increase: Junior Infants in 2025/26 (34 → 52, +18).
Largest single-class decrease: 2nd Class in 2024/25 (53 → 40, -13).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (51 → 54, +3).
Largest cohort-step loss: JI → SI in 2025/26 (34 → 28, -6).
Overall: 646 (1974/75) → 352 (2025/26), -294.

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	34	52	42.8	6
Senior Infants	28	55	42.8	6
1st Class	40	55	46.8	6
2nd Class	40	53	47.8	6
3rd Class	40	54	48.8	6
4th Class	48	54	50.2	6
5th Class	45	59	51.2	6
6th Class	46	59	52.2	6
Total	338	646	434.4	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

SI 2021/22 53

-1

1st 2022/23 52

2nd 2023/24 53

3rd 2024/25 53

-4

4th 2025/26 49

Cohort 2021/22

JI 2021/22 41

SI 2022/23 42

1st 2023/24 43

-3

2nd 2024/25 40

3rd 2025/26 40

Cohort 2022/23

JI 2022/23 38

SI 2023/24 39

1st 2024/25 40

2nd 2025/26 42

Cohort 2023/24

JI 2023/24 40

SI 2024/25 40

1st 2025/26 40

Cohort 2024/25

JI 2024/25 34

-6

SI 2025/26 28

Cohort 2025/26

JI 2025/26 52

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	646	–	–	–	–	–	–	–	–	–	646
1975/76	–	–	–	–	–	–	–	–	–	–	598
1976/77	548	–	–	–	–	–	–	–	–	–	548
1977/78	512	–	–	–	–	–	–	–	–	–	512
1978/79	472	–	–	–	–	–	–	–	–	–	472
1979/80	431	–	–	–	–	–	–	–	–	–	431
1980/81	393	–	–	–	–	–	–	–	–	–	393
1981/82	357	–	–	–	–	–	–	–	–	–	357
1982/83	338	–	–	–	–	–	–	–	–	–	338
1993/94	380	–	–	–	–	–	–	–	–	–	380
1994/95	383	–	–	–	–	–	–	–	–	–	383
1995/96	385	–	–	–	–	–	–	–	–	–	385
1996/97	403	–	–	–	–	–	–	–	–	–	403
1997/98	438	–	–	–	–	–	–	–	–	–	438
1998/99	467	–	–	–	–	–	–	–	–	–	467
1999/00	445	–	–	–	–	–	–	–	–	–	445
2000/01	442	–	–	–	–	–	–	–	–	–	442
2001/02	456	–	–	–	–	–	–	–	–	–	456
2002/03	443	–	–	–	–	–	–	–	–	–	443
2003/04	464	–	–	–	–	–	–	–	–	–	464
2004/05	476	–	–	–	–	–	–	–	–	–	476
2005/06	444	–	–	–	–	–	–	–	–	–	444
2006/07	438	–	–	–	–	–	–	–	–	–	438
2007/08	446	–	–	–	–	–	–	–	–	–	446
2008/09	439	–	–	–	–	–	–	–	–	–	439
2009/10	441	–	–	–	–	–	–	–	–	–	441
2010/11	435	–	–	–	–	–	–	–	–	–	435
2011/12	410	–	–	–	–	–	–	–	–	–	410
2012/13	425	–	–	–	–	–	–	–	–	–	425
2013/14	430	–	–	–	–	–	–	–	–	–	430
2014/15	435	–	–	–	–	–	–	–	–	–	435
2015/16	428	–	–	–	–	–	–	–	–	–	428
2016/17	423	–	–	–	–	–	–	–	–	–	423
2017/18	421	–	–	–	–	–	–	–	–	–	421
2018/19	423	–	–	–	–	–	–	–	–	–	423
2019/20	435	–	–	–	–	–	–	–	–	–	435
2020/21	425	–	52	55	55	50	48	54	59	52	425
2021/22	406	–	41	53	51	51	47	48	56	59	406
2022/23	386	–	38	42	52	51	54	48	45	56	386
2023/24	374	–	40	39	43	53	51	54	48	46	374
2024/25	353	–	34	40	40	40	53	48	52	46	353
2025/26	352	–	52	28	40	42	40	49	47	54	352