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S N na Maighdine Muire B

Roll number: 19302U Shangan Road, Ballymun, Dublin 9

School details

Address: Shangan Road, Ballymun, Dublin 9 (D09H2F2)
Email: [email protected]
Phone: 018421314
Principal: Aisling Cox
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 with Special Classes
School level: All-Through School
Planning area: Whitehall_SantryD9

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

16.11

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
2006/07	153	9	17.00	21
2007/08	151	8	18.88	25
2008/09	159	8	19.88	25
2009/10	142	8	17.75	29
2010/11	130	8	16.25	20
2011/12	139	8	17.38	19
2012/13	129	8	16.12	19
2013/14	131	8	16.38	21
2014/15	134	7	19.14	25
2015/16	134	8	16.75	20
2016/17	142	8	17.75	25
2017/18	138	8	17.25	22
2019/20	131	8	16.38	23
2020/21	141	7	20.14	29
2021/22	133	8	16.62	21
2022/23	150	8	18.75	23
2023/24	155	9	17.22	22
2024/25	155	9	17.22	23
2025/26	145	9	16.11	22

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1976/77: 861 in 1975/76 → 885, +24 pupils.
Biggest loss in a single year: 1993/94: 549 in 1983/84 → 368, -181 pupils.
Largest single-class increase: Junior Infants in 2022/23 (15 → 26, +11).
Largest single-class decrease: 3rd Class in 2024/25 (19 → 11, -8).
Largest cohort-step gain: JI → SI in 2022/23 (15 → 19, +4).
Largest cohort-step loss: 1st → 2nd in 2025/26 (24 → 21, -3).
Overall: 875 (1974/75) → 151 (2025/26), -724.

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	15	26	20.3	6
Senior Infants	14	25	20.2	6
1st Class	13	24	18.2	6
2nd Class	12	21	18.2	6
3rd Class	11	23	18.5	6
4th Class	13	22	18.3	6
5th Class	15	22	18.5	6
6th Class	14	21	18.3	6
Total	131	885	324.2	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 15

-1

SI 2021/22 14

-1

1st 2022/23 13

-1

2nd 2023/24 12

-1

3rd 2024/25 11

4th 2025/26 13

Cohort 2021/22

JI 2021/22 15

SI 2022/23 19

-2

1st 2023/24 17

2nd 2024/25 20

3rd 2025/26 20

Cohort 2022/23

JI 2022/23 26

-1

SI 2023/24 25

-1

1st 2024/25 24

-3

2nd 2025/26 21

Cohort 2023/24

JI 2023/24 26

-3

SI 2024/25 23

1st 2025/26 23

Cohort 2024/25

JI 2024/25 22

SI 2025/26 22

Cohort 2025/26

JI 2025/26 18

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	–	875	–	–	–	–	–	–	–	–	875
1975/76	–	–	–	–	–	–	–	–	–	–	861
1976/77	–	885	–	–	–	–	–	–	–	–	885
1977/78	–	854	–	–	–	–	–	–	–	–	854
1978/79	–	–	–	–	–	–	–	–	–	–	791
1979/80	–	725	–	–	–	–	–	–	–	–	725
1980/81	–	730	–	–	–	–	–	–	–	–	730
1981/82	–	684	–	–	–	–	–	–	–	–	684
1982/83	–	614	–	–	–	–	–	–	–	–	614
1983/84	–	549	–	–	–	–	–	–	–	–	549
1993/94	4	364	–	–	–	–	–	–	–	–	368
1994/95	5	346	–	–	–	–	–	–	–	–	351
1995/96	5	336	–	–	–	–	–	–	–	–	341
1996/97	7	297	–	–	–	–	–	–	–	–	304
1997/98	8	292	–	–	–	–	–	–	–	–	300
1998/99	10	272	–	–	–	–	–	–	–	–	282
1999/00	10	251	–	–	–	–	–	–	–	–	261
2000/01	6	217	–	–	–	–	–	–	–	–	223
2001/02	2	216	–	–	–	–	–	–	–	–	218
2002/03	1	219	–	–	–	–	–	–	–	–	220
2003/04	–	212	–	–	–	–	–	–	–	–	212
2004/05	–	179	–	–	–	–	–	–	–	–	179
2005/06	–	172	–	–	–	–	–	–	–	–	172
2006/07	–	165	–	–	–	–	–	–	–	–	165
2007/08	–	162	–	–	–	–	–	–	–	–	162
2008/09	–	177	–	–	–	–	–	–	–	–	177
2009/10	–	160	–	–	–	–	–	–	–	–	160
2010/11	–	145	–	–	–	–	–	–	–	–	145
2011/12	–	147	–	–	–	–	–	–	–	–	147
2012/13	–	138	–	–	–	–	–	–	–	–	138
2013/14	–	131	–	–	–	–	–	–	–	–	131
2014/15	–	134	–	–	–	–	–	–	–	–	134
2015/16	–	134	–	–	–	–	–	–	–	–	134
2016/17	–	142	–	–	–	–	–	–	–	–	142
2017/18	–	138	–	–	–	–	–	–	–	–	138
2018/19	–	133	–	–	–	–	–	–	–	–	133
2019/20	–	131	–	–	–	–	–	–	–	–	131
2020/21	–	141	15	18	16	21	23	14	15	19	141
2021/22	–	133	15	14	16	17	20	21	16	14	133
2022/23	–	156	26	19	13	18	18	22	21	19	156
2023/24	–	161	26	25	17	12	19	19	22	21	161
2024/25	–	161	22	23	24	20	11	21	19	21	161
2025/26	–	151	18	22	23	21	20	13	18	16	151