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MOUNT SION CBS N S

Roll number: 19947U Barrack Street, Waterford

School details

Address: Barrack Street, Waterford (X91NF77)
Email: [email protected]
Phone: 051377947
Principal: Michael Walsh
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Waterford City Council
School patron: Bishop of Waterford & Lismore
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Waterford

Preliminary data

The latest year shown (2025/26) is preliminary and subject to revision when the official enrolment figures are released by the Department of Education.

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2005/06: 296 in 2004/05 → 336, +40 pupils.
Biggest loss in a single year: 1996/97: 442 in 1995/96 → 407, -35 pupils.
Largest single-class increase: 6th Class in 2021/22 (32 → 44, +12).
Largest single-class decrease: 4th Class in 2021/22 (49 → 38, -11).
Largest cohort-step gain: JI → SI in 2024/25 (42 → 46, +4).
Largest cohort-step loss: 3rd → 4th in 2024/25 (46 → 44, -2).
Overall: 452 (1993/94) → 360 (2025/26 (preliminary)), -92.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available years (2020/21–2024/25; preliminary year excluded from class stats).

Class	Min	Max	Mean	Years
Junior Infants	40	47	42.6	5
Senior Infants	41	46	43.8	5
1st Class	42	45	43.4	5
2nd Class	41	45	44.0	5
3rd Class	34	46	42.4	5
4th Class	38	49	43.8	5
5th Class	41	47	43.6	5
6th Class	32	46	41.0	5
Total	288	452	344.6	33

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 47

-1

SI 2021/22 46

-1

1st 2022/23 45

2nd 2023/24 45

3rd 2024/25 45

Cohort 2021/22

JI 2021/22 40

SI 2022/23 43

1st 2023/24 44

2nd 2024/25 45

Cohort 2022/23

JI 2022/23 43

SI 2023/24 43

1st 2024/25 43

Cohort 2023/24

JI 2023/24 42

SI 2024/25 46

Cohort 2024/25

JI 2024/25 41

Raw data by year

Years marked (preliminary) are subject to revision when official data are published.

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1993/94	–	452	–	–	–	–	–	–	–	–	452
1994/95	–	443	–	–	–	–	–	–	–	–	443
1995/96	–	442	–	–	–	–	–	–	–	–	442
1996/97	–	407	–	–	–	–	–	–	–	–	407
1997/98	–	383	–	–	–	–	–	–	–	–	383
1998/99	–	354	–	–	–	–	–	–	–	–	354
1999/00	–	332	–	–	–	–	–	–	–	–	332
2000/01	–	331	–	–	–	–	–	–	–	–	331
2001/02	–	328	–	–	–	–	–	–	–	–	328
2002/03	–	329	–	–	–	–	–	–	–	–	329
2003/04	–	310	–	–	–	–	–	–	–	–	310
2004/05	–	296	–	–	–	–	–	–	–	–	296
2005/06	–	336	–	–	–	–	–	–	–	–	336
2006/07	–	342	–	–	–	–	–	–	–	–	342
2007/08	–	342	–	–	–	–	–	–	–	–	342
2008/09	–	346	–	–	–	–	–	–	–	–	346
2009/10	–	349	–	–	–	–	–	–	–	–	349
2010/11	–	323	–	–	–	–	–	–	–	–	323
2011/12	–	313	–	–	–	–	–	–	–	–	313
2012/13	–	315	–	–	–	–	–	–	–	–	315
2013/14	–	290	–	–	–	–	–	–	–	–	290
2014/15	–	288	–	–	–	–	–	–	–	–	288
2015/16	–	295	–	–	–	–	–	–	–	–	295
2016/17	–	304	–	–	–	–	–	–	–	–	304
2017/18	–	326	–	–	–	–	–	–	–	–	326
2018/19	–	341	–	–	–	–	–	–	–	–	341
2019/20	–	328	–	–	–	–	–	–	–	–	328
2020/21	–	342	47	41	43	41	34	49	43	32	342
2021/22	–	352	40	46	42	44	42	38	47	44	352
2022/23	–	360	43	43	45	45	45	43	41	46	360
2023/24	–	353	42	43	44	45	46	45	41	41	353
2024/25	–	359	41	46	43	45	45	44	46	42	359
2025/26 (preliminary)	–	360	–	–	–	–	–	–	–	–	360