By area · Release notes. Enrolment by planning area, local authority, school patron, county.
DRIMNAGH CASTLE CBS N S
Roll number: 19837N
Drimnagh Castle, Long Mile Road, Dublin 12
School details
- Address
- Drimnagh Castle, Long Mile Road, Dublin 12 (D12C893)
- Principal
- Eugene Duffy
- Ethos
- Catholic
- DEIS
- N
- Irish classification
- No subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- Dublin City Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary
- School level
- Senior
- Planning area
- Dolphin's Barn_D12
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: 2024/25: 330 in 2023/24 → 343, +13 pupils.
- Biggest loss in a single year: 2021/22: 347 in 2020/21 → 341, -6 pupils.
- Largest single-class increase: 3rd Class in 2024/25 (57 → 71, +14).
- Largest single-class decrease: 6th Class in 2025/26 (preliminary) (78 → 0, -78).
- Largest cohort-step gain: 3rd → 4th in 2024/25 (57 → 65, +8).
- Largest cohort-step loss: 5th → 6th in 2023/24 (68 → 65, -3).
- Overall: 347 (2020/21) → 342 (2025/26 (preliminary)), -5.
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 |
| 2nd Class |
54 |
70 |
61.6 |
5 |
| 3rd Class |
57 |
72 |
64.6 |
5 |
| 4th Class |
65 |
77 |
69.6 |
5 |
| 5th Class |
68 |
75 |
71.6 |
5 |
| 6th Class |
65 |
78 |
72.0 |
5 |
| Total |
330 |
347 |
339.8 |
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 |
– |
347 |
– |
– |
– |
70 |
62 |
74 |
68 |
73 |
347 |
| 2021/22 |
– |
341 |
– |
– |
– |
61 |
72 |
65 |
75 |
68 |
341 |
| 2022/23 |
– |
336 |
– |
– |
– |
54 |
61 |
77 |
68 |
76 |
336 |
| 2023/24 |
– |
330 |
– |
– |
– |
66 |
57 |
67 |
75 |
65 |
330 |
| 2024/25 |
– |
343 |
– |
– |
– |
57 |
71 |
65 |
72 |
78 |
343 |
| 2025/26 (preliminary) |
– |
342 |
– |
– |
– |
– |
– |
– |
– |
– |
342 |