Home · By area · Release notes. Enrolment by planning area, local authority, school patron, county.

OUR LADY OF MERCY SENIOR P.S.

Roll number: 18689T Military Road, Waterford

School details

Address: Military Road, Waterford (X91XN28)
Email: [email protected]
Phone: 051875993
Principal: Bríd O'Brien
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
School level: Senior
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: 1976/77: 366 in 1975/76 → 384, +18 pupils.
Biggest loss in a single year: 1993/94: 401 in 1983/84 → 336, -65 pupils.
Largest single-class increase: 4th Class in 2024/25 (67 → 79, +12).
Largest single-class decrease: 3rd Class in 2024/25 (75 → 60, -15).
Largest cohort-step gain: 4th → 5th in 2024/25 (67 → 72, +5).
Largest cohort-step loss: 4th → 5th in 2023/24 (78 → 74, -4).
Overall: 353 (1974/75) → 292 (2025/26 (preliminary)), -61.

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
3rd Class	60	75	70.0	5
4th Class	67	81	75.0	5
5th Class	69	83	75.0	5
6th Class	72	82	76.6	5
Total	276	401	324.7	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

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
1974/75	353	–	–	–	–	–	–	–	–	–	353
1975/76	–	–	–	–	–	–	–	–	–	–	366
1976/77	384	–	–	–	–	–	–	–	–	–	384
1977/78	396	–	–	–	–	–	–	–	–	–	396
1978/79	391	–	–	–	–	–	–	–	–	–	391
1979/80	387	–	–	–	–	–	–	–	–	–	387
1980/81	385	–	–	–	–	–	–	–	–	–	385
1981/82	378	–	–	–	–	–	–	–	–	–	378
1982/83	395	–	–	–	–	–	–	–	–	–	395
1983/84	401	–	–	–	–	–	–	–	–	–	401
1993/94	336	–	–	–	–	–	–	–	–	–	336
1994/95	340	–	–	–	–	–	–	–	–	–	340
1995/96	341	–	–	–	–	–	–	–	–	–	341
1996/97	352	–	–	–	–	–	–	–	–	–	352
1997/98	348	–	–	–	–	–	–	–	–	–	348
1998/99	331	–	–	–	–	–	–	–	–	–	331
1999/00	322	–	–	–	–	–	–	–	–	–	322
2000/01	306	–	–	–	–	–	–	–	–	–	306
2001/02	303	–	–	–	–	–	–	–	–	–	303
2002/03	296	–	–	–	–	–	–	–	–	–	296
2003/04	276	–	–	–	–	–	–	–	–	–	276
2004/05	283	–	–	–	–	–	–	–	–	–	283
2005/06	280	–	–	–	–	–	–	–	–	–	280
2006/07	292	–	–	–	–	–	–	–	–	–	292
2007/08	305	–	–	–	–	–	–	–	–	–	305
2008/09	296	–	–	–	–	–	–	–	–	–	296
2009/10	302	–	–	–	–	–	–	–	–	–	302
2010/11	306	–	–	–	–	–	–	–	–	–	306
2011/12	298	–	–	–	–	–	–	–	–	–	298
2012/13	310	–	–	–	–	–	–	–	–	–	310
2013/14	313	–	–	–	–	–	–	–	–	–	313
2014/15	304	–	–	–	–	–	–	–	–	–	304
2015/16	304	–	–	–	–	–	–	–	–	–	304
2016/17	296	–	–	–	–	–	–	–	–	–	296
2017/18	298	–	–	–	–	–	–	–	–	–	298
2018/19	304	–	–	–	–	–	–	–	–	–	304
2019/20	308	–	–	–	–	–	–	–	–	–	308
2020/21	310	–	–	–	–	–	71	81	83	75	310
2021/22	304	–	–	–	–	–	75	70	77	82	304
2022/23	295	–	–	–	–	–	69	78	69	79	295
2023/24	288	–	–	–	–	–	75	67	74	72	288
2024/25	286	–	–	–	–	–	60	79	72	75	286
2025/26 (preliminary)	292	–	–	–	–	–	–	–	–	–	292