By area · Release notes. Enrolment by planning area, local authority, school patron, county.
SCOIL IOSAGAIN BOYS SENIOR
Roll number: 17603B
Aughavannagh Road, Crumlin, Dublin 12
School details
- Address
- Aughavannagh Road, Crumlin, Dublin 12 (D12W522)
- Principal
- Aoife Wrynne
- Ethos
- Catholic
- DEIS
- Y
- Irish classification
- No subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- Dublin City Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- 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: 2021/22: 81 in 2020/21 → 85, +4 pupils.
- Biggest loss in a single year: 2022/23: 85 in 2021/22 → 74, -11 pupils.
- Largest single-class increase: 6th Class in 2021/22 (7 → 24, +17).
- Largest single-class decrease: 6th Class in 2025/26 (preliminary) (20 → 0, -20).
- Largest cohort-step gain: 3rd → 4th in 2022/23 (18 → 20, +2).
- Largest cohort-step loss: 4th → 5th in 2021/22 (16 → 12, -4).
- Overall: 81 (2020/21) → 83 (2025/26 (preliminary)), 2.
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 |
6 |
20 |
13.2 |
5 |
| 3rd Class |
3 |
18 |
12.6 |
5 |
| 4th Class |
3 |
20 |
13.8 |
5 |
| 5th Class |
3 |
23 |
15.2 |
5 |
| 6th Class |
3 |
24 |
13.2 |
5 |
| Total |
74 |
85 |
80.2 |
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 |
– |
81 |
– |
– |
– |
20 |
3 |
16 |
23 |
7 |
81 |
| 2021/22 |
– |
85 |
– |
– |
– |
16 |
18 |
3 |
12 |
24 |
85 |
| 2022/23 |
– |
74 |
– |
– |
– |
10 |
17 |
20 |
3 |
12 |
74 |
| 2023/24 |
– |
77 |
– |
– |
– |
14 |
10 |
18 |
20 |
3 |
77 |
| 2024/25 |
– |
81 |
– |
– |
– |
6 |
15 |
12 |
18 |
20 |
81 |
| 2025/26 (preliminary) |
1 |
82 |
– |
– |
– |
– |
– |
– |
– |
– |
83 |