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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 gain in a single year: 1993/94: 337 in 1983/84 → 474, +137 pupils.
- Biggest loss in a single year: 2011/12: 423 in 2010/11 → 400, -23 pupils.
- Largest single-class increase: 4th Class in 2021/22 (100 → 114, +14).
- Largest single-class decrease: 3rd Class in 2022/23 (109 → 92, -17).
- 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: 80 (1977/78) → 377 (2025/26 (preliminary)), 297.
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 |
80 |
474 |
386.3 |
40 |
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
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 |
| 1977/78 |
33 |
47 |
– |
– |
– |
– |
– |
– |
– |
– |
80 |
| 1978/79 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
108 |
| 1979/80 |
93 |
123 |
– |
– |
– |
– |
– |
– |
– |
– |
216 |
| 1980/81 |
139 |
170 |
– |
– |
– |
– |
– |
– |
– |
– |
309 |
| 1981/82 |
145 |
173 |
– |
– |
– |
– |
– |
– |
– |
– |
318 |
| 1982/83 |
156 |
162 |
– |
– |
– |
– |
– |
– |
– |
– |
318 |
| 1983/84 |
164 |
173 |
– |
– |
– |
– |
– |
– |
– |
– |
337 |
| 1993/94 |
213 |
261 |
– |
– |
– |
– |
– |
– |
– |
– |
474 |
| 1994/95 |
210 |
259 |
– |
– |
– |
– |
– |
– |
– |
– |
469 |
| 1995/96 |
213 |
247 |
– |
– |
– |
– |
– |
– |
– |
– |
460 |
| 1996/97 |
209 |
237 |
– |
– |
– |
– |
– |
– |
– |
– |
446 |
| 1997/98 |
202 |
225 |
– |
– |
– |
– |
– |
– |
– |
– |
427 |
| 1998/99 |
207 |
209 |
– |
– |
– |
– |
– |
– |
– |
– |
416 |
| 1999/00 |
213 |
199 |
– |
– |
– |
– |
– |
– |
– |
– |
412 |
| 2000/01 |
222 |
176 |
– |
– |
– |
– |
– |
– |
– |
– |
398 |
| 2001/02 |
219 |
192 |
– |
– |
– |
– |
– |
– |
– |
– |
411 |
| 2002/03 |
215 |
209 |
– |
– |
– |
– |
– |
– |
– |
– |
424 |
| 2003/04 |
207 |
217 |
– |
– |
– |
– |
– |
– |
– |
– |
424 |
| 2004/05 |
190 |
230 |
– |
– |
– |
– |
– |
– |
– |
– |
420 |
| 2005/06 |
196 |
220 |
– |
– |
– |
– |
– |
– |
– |
– |
416 |
| 2006/07 |
206 |
207 |
– |
– |
– |
– |
– |
– |
– |
– |
413 |
| 2007/08 |
209 |
205 |
– |
– |
– |
– |
– |
– |
– |
– |
414 |
| 2008/09 |
234 |
189 |
– |
– |
– |
– |
– |
– |
– |
– |
423 |
| 2009/10 |
239 |
194 |
– |
– |
– |
– |
– |
– |
– |
– |
433 |
| 2010/11 |
221 |
202 |
– |
– |
– |
– |
– |
– |
– |
– |
423 |
| 2011/12 |
194 |
206 |
– |
– |
– |
– |
– |
– |
– |
– |
400 |
| 2012/13 |
189 |
211 |
– |
– |
– |
– |
– |
– |
– |
– |
400 |
| 2013/14 |
184 |
203 |
– |
– |
– |
– |
– |
– |
– |
– |
387 |
| 2014/15 |
184 |
203 |
– |
– |
– |
– |
– |
– |
– |
– |
387 |
| 2015/16 |
195 |
196 |
– |
– |
– |
– |
– |
– |
– |
– |
391 |
| 2016/17 |
194 |
205 |
– |
– |
– |
– |
– |
– |
– |
– |
399 |
| 2017/18 |
204 |
208 |
– |
– |
– |
– |
– |
– |
– |
– |
412 |
| 2018/19 |
217 |
209 |
– |
– |
– |
– |
– |
– |
– |
– |
426 |
| 2019/20 |
227 |
204 |
– |
– |
– |
– |
– |
– |
– |
– |
431 |
| 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 |