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SCOIL MHUIRE

Roll number: 19497P Rathsallagh, Shankill, Dublin 18

School details

Address: Rathsallagh, Shankill, Dublin 18 (D18FT91)
Email: [email protected]
Phone: 012823507
Principal: Patricia Slavin
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: All-Through School
Planning area: Ballybrack_Shankill_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

20.25

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	300	14	21.43	26	0
2007/08	301	14	21.50	28	0
2008/09	302	14	21.57	26	0
2009/10	300	14	21.43	26	0
2010/11	306	14	21.86	26	0
2011/12	291	14	20.79	28	0
2012/13	305	13	23.46	25	0
2013/14	308	13	23.69	27	0
2014/15	315	13	24.23	28	0
2015/16	329	14	23.50	26	0
2016/17	324	14	23.14	32	1
2017/18	339	14	24.21	30	1
2019/20	324	15	21.60	25	0
2020/21	323	16	20.19	27	0
2021/22	288	15	19.20	25	0
2022/23	281	14	20.07	27	0
2023/24	268	14	19.14	28	0
2024/25	232	14	16.57	27	0
2025/26	243	12	20.25	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1976/77: 55 in 1975/76 → 235, +180 pupils.
Biggest loss in a single year: 1993/94: 701 in 1983/84 → 439, -262 pupils.
Largest single-class increase: 3rd Class in 2022/23 (34 → 43, +9).
Largest single-class decrease: 3rd Class in 2024/25 (37 → 25, -12).
Largest cohort-step gain: JI → SI in 2025/26 (20 → 27, +7).
Largest cohort-step loss: 3rd → 4th in 2024/25 (37 → 29, -8).
Overall: 55 (1975/76) → 249 (2025/26), 194.

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	20	30	26.8	6
Senior Infants	25	34	28.3	6
1st Class	27	42	31.8	6
2nd Class	26	40	32.5	6
3rd Class	25	43	35.0	6
4th Class	29	45	36.3	6
5th Class	34	45	39.7	6
6th Class	35	52	43.8	6
Total	55	701	345.8	41

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 30

-5

SI 2021/22 25

1st 2022/23 27

2nd 2023/24 28

-3

3rd 2024/25 25

4th 2025/26 30

Cohort 2021/22

JI 2021/22 28

SI 2022/23 29

1st 2023/24 29

2nd 2024/25 31

3rd 2025/26 31

Cohort 2022/23

JI 2022/23 29

-1

SI 2023/24 28

-1

1st 2024/25 27

-1

2nd 2025/26 26

Cohort 2023/24

JI 2023/24 30

-3

SI 2024/25 27

1st 2025/26 33

Cohort 2024/25

JI 2024/25 20

SI 2025/26 27

Cohort 2025/26

JI 2025/26 24

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1975/76	–	–	–	–	–	–	–	–	–	–	55
1976/77	112	123	–	–	–	–	–	–	–	–	235
1977/78	148	169	–	–	–	–	–	–	–	–	317
1978/79	–	–	–	–	–	–	–	–	–	–	404
1980/81	266	308	–	–	–	–	–	–	–	–	574
1981/82	295	344	–	–	–	–	–	–	–	–	639
1982/83	306	357	–	–	–	–	–	–	–	–	663
1983/84	326	375	–	–	–	–	–	–	–	–	701
1993/94	209	230	–	–	–	–	–	–	–	–	439
1994/95	190	215	–	–	–	–	–	–	–	–	405
1995/96	184	205	–	–	–	–	–	–	–	–	389
1996/97	197	195	–	–	–	–	–	–	–	–	392
1997/98	165	193	–	–	–	–	–	–	–	–	358
1998/99	164	194	–	–	–	–	–	–	–	–	358
1999/00	152	190	–	–	–	–	–	–	–	–	342
2000/01	147	177	–	–	–	–	–	–	–	–	324
2001/02	150	180	–	–	–	–	–	–	–	–	330
2002/03	142	176	–	–	–	–	–	–	–	–	318
2003/04	139	158	–	–	–	–	–	–	–	–	297
2004/05	137	150	–	–	–	–	–	–	–	–	287
2005/06	153	149	–	–	–	–	–	–	–	–	302
2006/07	149	157	–	–	–	–	–	–	–	–	306
2007/08	148	158	–	–	–	–	–	–	–	–	306
2008/09	147	161	–	–	–	–	–	–	–	–	308
2009/10	140	160	–	–	–	–	–	–	–	–	300
2010/11	152	154	–	–	–	–	–	–	–	–	306
2011/12	135	156	–	–	–	–	–	–	–	–	291
2012/13	138	167	–	–	–	–	–	–	–	–	305
2013/14	138	170	–	–	–	–	–	–	–	–	308
2014/15	147	168	–	–	–	–	–	–	–	–	315
2015/16	154	175	–	–	–	–	–	–	–	–	329
2016/17	148	176	–	–	–	–	–	–	–	–	324
2017/18	161	178	–	–	–	–	–	–	–	–	339
2018/19	152	175	–	–	–	–	–	–	–	–	327
2019/20	149	175	–	–	–	–	–	–	–	–	324
2020/21	159	164	30	34	42	35	40	45	45	52	323
2021/22	143	148	28	25	33	40	34	40	44	44	291
2022/23	133	153	29	29	27	35	43	34	43	43	286
2023/24	131	143	30	28	29	28	37	40	34	45	274
2024/25	113	125	20	27	27	31	25	29	38	35	238
2025/26	113	136	24	27	33	26	31	30	34	44	249