By area · Release notes. Enrolment by planning area, local authority, school patron, county.
SCOIL TREASA FIRHOUSE
Roll number: 19565G
Ballycullen Avenue, Firhouse, Dublin 24
School details
- Address
- Ballycullen Avenue, Firhouse, Dublin 24 (D24E985)
- Principal
- Gerard O'Meara
- Ethos
- Catholic
- DEIS
- N
- Irish classification
- No subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- South Dublin County Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary
- School level
- Senior
- Planning area
- Firhouse_Oldbawn
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 loss in a single year: 2022/23: 432 in 2021/22 → 410, -22 pupils.
- Largest single-class increase: 4th Class in 2021/22 (100 → 114, +14).
- Largest single-class decrease: 6th Class in 2025/26 (preliminary) (107 → 0, -107).
- Largest cohort-step gain: 4th → 5th in 2024/25 (91 → 94, +3).
- Largest cohort-step loss: 3rd → 4th in 2022/23 (109 → 105, -4).
- Overall: 432 (2020/21) → 377 (2025/26 (preliminary)), -55.
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 |
85 |
113 |
99.0 |
5 |
| 4th Class |
88 |
114 |
99.6 |
5 |
| 5th Class |
94 |
114 |
105.2 |
5 |
| 6th Class |
99 |
113 |
106.8 |
5 |
| Total |
377 |
432 |
405.2 |
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 |
216 |
216 |
– |
– |
– |
– |
113 |
100 |
113 |
106 |
432 |
| 2021/22 |
212 |
220 |
– |
– |
– |
– |
109 |
114 |
100 |
109 |
432 |
| 2022/23 |
197 |
213 |
– |
– |
– |
– |
92 |
105 |
114 |
99 |
410 |
| 2023/24 |
181 |
213 |
– |
– |
– |
– |
85 |
91 |
105 |
113 |
394 |
| 2024/25 |
190 |
196 |
– |
– |
– |
– |
96 |
88 |
94 |
107 |
386 |
| 2025/26 (preliminary) |
177 |
200 |
– |
– |
– |
– |
– |
– |
– |
– |
377 |