By area · Release notes. Enrolment by planning area, local authority, school patron, county.
ST MARYS SEN N S
Roll number: 19647I
ROWLAGH, CLONDALKIN, DUBLIN 22
School details
- Address
- ROWLAGH, CLONDALKIN, DUBLIN 22 (D22WN40)
- Principal
- Annette Doherty
- Ethos
- Catholic
- DEIS
- Y
- Irish classification
- No subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- South Dublin County Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- Senior
- Planning area
- Palmerstown_Ronanstown_D20_22
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: 2021/22: 210 in 2020/21 → 224, +14 pupils.
- Biggest loss in a single year: 2024/25: 212 in 2023/24 → 192, -20 pupils.
- Largest single-class increase: 3rd Class in 2021/22 (52 → 66, +14).
- Largest single-class decrease: 6th Class in 2025/26 (preliminary) (59 → 0, -59).
- Largest cohort-step gain: 4th → 5th in 2021/22 (44 → 47, +3).
- Largest cohort-step loss: 5th → 6th in 2024/25 (65 → 59, -6).
- Overall: 210 (2020/21) → 204 (2025/26 (preliminary)), -6.
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 |
26 |
66 |
47.2 |
5 |
| 4th Class |
37 |
66 |
50.0 |
5 |
| 5th Class |
36 |
65 |
51.6 |
5 |
| 6th Class |
48 |
59 |
53.4 |
5 |
| Total |
192 |
224 |
208.8 |
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 |
105 |
105 |
– |
– |
– |
– |
52 |
44 |
54 |
51 |
210 |
| 2021/22 |
106 |
118 |
– |
– |
– |
– |
66 |
54 |
47 |
57 |
224 |
| 2022/23 |
103 |
108 |
– |
– |
– |
– |
41 |
66 |
56 |
48 |
211 |
| 2023/24 |
103 |
109 |
– |
– |
– |
– |
51 |
37 |
65 |
52 |
212 |
| 2024/25 |
95 |
97 |
– |
– |
– |
– |
26 |
49 |
36 |
59 |
192 |
| 2025/26 (preliminary) |
96 |
108 |
– |
– |
– |
– |
– |
– |
– |
– |
204 |