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)
- 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: 2025/26 (preliminary): 286 in 2024/25 → 292, +6 pupils.
- Biggest loss in a single year: 2022/23: 304 in 2021/22 → 295, -9 pupils.
- Largest single-class increase: 4th Class in 2024/25 (67 → 79, +12).
- Largest single-class decrease: 4th Class in 2025/26 (preliminary) (79 → 0, -79).
- 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: 310 (2020/21) → 292 (2025/26 (preliminary)), -18.
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 |
286 |
310 |
295.8 |
6 |
Total enrolment over time
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 |
| 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 |