By area · Release notes. Enrolment by planning area, local authority, school patron, county.
St John's Senior School
Roll number: 20469R
Coolgreaney Road, Arklow
School details
- Address
- Coolgreaney Road, Arklow (Y14PA97)
- Principal
- Joy Loughlin
- Ethos
- Catholic
- DEIS
- N
- Irish classification
- Some subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- Wicklow County Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- Senior
- Planning area
- Arklow
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: 419 in 2020/21 → 437, +18 pupils.
- Biggest loss in a single year: 2023/24: 407 in 2022/23 → 365, -42 pupils.
- Largest single-class increase: 6th Class in 2021/22 (84 → 124, +40).
- Largest single-class decrease: 6th Class in 2025/26 (preliminary) (103 → 0, -103).
- Largest cohort-step gain: 5th → 6th in 2023/24 (96 → 103, +7).
- Largest cohort-step loss: 3rd → 4th in 2024/25 (77 → 74, -3).
- Overall: 419 (2020/21) → 323 (2025/26 (preliminary)), -96.
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 |
77 |
97 |
85.6 |
5 |
| 4th Class |
74 |
113 |
92.0 |
5 |
| 5th Class |
81 |
119 |
102.6 |
5 |
| 6th Class |
84 |
124 |
106.2 |
5 |
| Total |
323 |
437 |
383.7 |
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 |
214 |
205 |
– |
– |
– |
– |
91 |
113 |
119 |
84 |
419 |
| 2021/22 |
229 |
208 |
– |
– |
– |
– |
97 |
91 |
115 |
124 |
437 |
| 2022/23 |
205 |
202 |
– |
– |
– |
– |
79 |
104 |
96 |
117 |
407 |
| 2023/24 |
183 |
182 |
– |
– |
– |
– |
77 |
78 |
102 |
103 |
365 |
| 2024/25 |
174 |
177 |
– |
– |
– |
– |
84 |
74 |
81 |
103 |
351 |
| 2025/26 (preliminary) |
164 |
159 |
– |
– |
– |
– |
– |
– |
– |
– |
323 |