Scoil Treasa Firhouse
Dublin 24 · Roll number 19565G
- Catholic ethos
- Not DEIS
- Ordinary with Special Classes
- Pupils in 2025/26
- 377
- −9 on 2024/25
- Over 10 years
- −4%
- Down 14 from 391 in 2015/16
- Girls and boys
- 177 / 200
- 47% girls
Pupils since 1977
Total enrolment each school year
Shaded: the last 10 years, 2015/16 to 2025/26. 1983/84 is left out because its source file is incomplete, and no files exist for 1984/85 to 1992/93. Known data issues
Pupils by class
Published for each class from 2020/21.
This year, 2025/26
377 pupils across 8 classes
Every class, every year
Darker cells have more pupils. A group of pupils moves down one class and right one year.
| 2020/21 | 2021/22 | 2022/23 | 2023/24 | 2024/25 | 2025/26 | Average | |
|---|---|---|---|---|---|---|---|
| Junior Infants | – | – | – | – | – | 0 | 0.0 |
| Senior Infants | – | – | – | – | – | 0 | 0.0 |
| 1st Class | – | – | – | – | – | 0 | 0.0 |
| 2nd Class | – | – | – | – | – | 0 | 0.0 |
| 3rd Class | 113 | 109 | 92 | 85 | 96 | 100 | 99.2 |
| 4th Class | 100 | 114 | 105 | 91 | 88 | 98 | 99.3 |
| 5th Class | 113 | 100 | 114 | 105 | 94 | 88 | 102.3 |
| 6th Class | 106 | 109 | 99 | 113 | 107 | 91 | 104.2 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2020/21
96 in 3rd Class (2024/25), 98 in 4th Class (2025/26): 2 pupils more.
- 963rd Class2024/25
- 984th Class2025/26
In 3rd Class in 2023/24
85 in 3rd Class (2023/24), 88 in 5th Class (2025/26): 3 pupils more.
- 853rd Class2023/24
- 884th Class2024/25
- 885th Class2025/26
In 3rd Class in 2022/23
92 in 3rd Class (2022/23), 91 in 6th Class (2025/26): 1 pupil fewer.
- 923rd Class2022/23
- 914th Class2023/24
- 945th Class2024/25
- 916th Class2025/26
In 3rd Class in 2021/22
109 in 3rd Class (2021/22), 107 in 6th Class (2024/25): 2 pupils fewer.
- 1093rd Class2021/22
- 1054th Class2022/23
- 1055th Class2023/24
- 1076th Class2024/25
In 3rd Class in 2020/21
113 in 3rd Class (2020/21), 113 in 6th Class (2023/24): no change.
- 1133rd Class2020/21
- 1144th Class2021/22
- 1145th Class2022/23
- 1136th Class2023/24
In 4th Class in 2020/21
100 in 4th Class (2020/21), 99 in 6th Class (2022/23): 1 pupil fewer.
- 1004th Class2020/21
- 1005th Class2021/22
- 996th Class2022/23
In 5th Class in 2020/21
113 in 5th Class (2020/21), 109 in 6th Class (2021/22): 4 pupils fewer.
- 1135th Class2020/21
- 1096th Class2021/22
Biggest one-year changes in a class
- +144th Class in 2021/22 (100 to 114)
- −173rd Class in 2022/23 (109 to 92)
Class sizes
Mainstream class groups, 2006/07 to 2025/26.
Why these won't match pupils by class
Mainstream class groups only. The source does not identify which standard/year group each class group belongs to. So these figures won't match the pupils-by-class figures exactly.
In 2025/26. Choose a figure to chart it.
Class sizes over time
Average class size, 2006/07 to 2025/26
Teachers
Who teaches at Scoil Treasa Firhouse, 2006/07 to 2025/26.
How we count teachers
Class teachers come from the Department of Education's class sizes: one for each mainstream class. Special education and special class teachers are the posts the National Council for Special Education (NCSE) allocates. We add a principal who doesn't teach a class where the Department's rules give the school one. These are posts, not people: part of a post can be a teacher shared with another school. Up to 2015/16 the Department counted every teacher itself. Known data issues
In 2025/26
25.6teaching posts
Our estimate: about 26 teachers.
- Class teachersOne for each of the 16 mainstream classes 16
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers190 hours of support teaching a week 7.6
- Special class teachersFor an autism class 1
7 special needs assistants (SNAs) also work with pupils. 4 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 7.6 special education teachers, 1 special class teacher and 7 SNAs for next year.
Teachers since 2006/07
Teachers each school year, by role
To 2015/16: the Department of Education's count of every teacher. From 2019/20: our estimate, from class sizes and the NCSE's allocations. Dashed boxes: no special education figures were published for those years, so only class teachers and the principal are shown. Known data issues
Sources: Department of Education class sizes and teacher counts; NCSE school allocations and special classes (CC BY 4.0).
Nearby schools
The 6 primary schools closest to Scoil Treasa Firhouse, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| Scoil Treasa FirhouseThis school | – | 377 |
−3.6%
|
|
| 1 | Firhouse Educate Together National School0.5 km · Dublin 24 · Multi-denominational | 0.5 km | 355 |
+446.2%
|
| 2 | Gaelscoil na Giúise0.5 km · D24 W682 · Gaelscoil · Multi-denominational | 0.5 km | 278 |
+434.6%
|
| 3 | Scoil Carmel0.5 km · Dublin 24 | 0.5 km | 313 |
−30.1%
|
| 4 | Scoil Santain0.7 km · Baile Átha Cliath 24 · Gaelscoil · DEIS | 0.7 km | 262 |
−27.4%
|
| 5 | Gaelscoil Chnoc Liamhna1.0 km · Baile Átha Cliath 16 · Gaelscoil | 1.0 km | 233 |
−1.3%
|
| 6 | Holy Rosary Primary School1.1 km · Dublin 24 · DEIS | 1.1 km | 525 |
−12.4%
|
About this school
Inspection reports open on gov.ie, under the name the school had when it was inspected. They describe specific areas of the school's work rather than giving an overall grade. Newer schools may not have one yet.
Contact
- Principal
- Gerard O'Meara
- Phone
- 014513141
- [email protected]
- Address
- Ballycullen Avenue, Firhouse, Dublin 24, D24 E985
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- Senior
- DEIS
- Not DEIS
Language and area
- Irish classification
- No subjects through Irish
- Gaeltacht
- Non-Gaeltacht
- Island
- Not on an island
- Local authority
- South Dublin County Council
- Planning area
- Firhouse–Oldbawn
Each detail is the latest one the Department of Education has recorded for this school. If a detail was left blank in 2025/26, we show it from an earlier year, so some details may be older than the pupil numbers. Known data issues
Data by year
40 school years from 1977/78 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 377 | 177 | 200 | 0 | 0 | 0 | 0 | 100 | 98 | 88 | 91 |
| 2024/25 | 386 | 190 | 196 | – | – | – | – | 96 | 88 | 94 | 107 |
| 2023/24 | 394 | 181 | 213 | – | – | – | – | 85 | 91 | 105 | 113 |
| 2022/23 | 410 | 197 | 213 | – | – | – | – | 92 | 105 | 114 | 99 |
| 2021/22 | 432 | 212 | 220 | – | – | – | – | 109 | 114 | 100 | 109 |
| 2020/21 | 432 | 216 | 216 | – | – | – | – | 113 | 100 | 113 | 106 |
| 2019/20 | 431 | 227 | 204 | – | – | – | – | – | – | – | – |
| 2018/19 | 426 | 217 | 209 | – | – | – | – | – | – | – | – |
| 2017/18 | 412 | 204 | 208 | – | – | – | – | – | – | – | – |
| 2016/17 | 399 | 194 | 205 | – | – | – | – | – | – | – | – |
| 2015/16 | 391 | 195 | 196 | – | – | – | – | – | – | – | – |
| 2014/15 | 387 | 184 | 203 | – | – | – | – | – | – | – | – |
| 2013/14 | 387 | 184 | 203 | – | – | – | – | – | – | – | – |
| 2012/13 | 400 | 189 | 211 | – | – | – | – | – | – | – | – |
| 2011/12 | 400 | 194 | 206 | – | – | – | – | – | – | – | – |
| 2010/11 | 423 | 221 | 202 | – | – | – | – | – | – | – | – |
| 2009/10 | 433 | 239 | 194 | – | – | – | – | – | – | – | – |
| 2008/09 | 423 | 234 | 189 | – | – | – | – | – | – | – | – |
| 2007/08 | 414 | 209 | 205 | – | – | – | – | – | – | – | – |
| 2006/07 | 413 | 206 | 207 | – | – | – | – | – | – | – | – |
| 2005/06 | 416 | 196 | 220 | – | – | – | – | – | – | – | – |
| 2004/05 | 420 | 190 | 230 | – | – | – | – | – | – | – | – |
| 2003/04 | 424 | 207 | 217 | – | – | – | – | – | – | – | – |
| 2002/03 | 424 | 215 | 209 | – | – | – | – | – | – | – | – |
| 2001/02 | 411 | 219 | 192 | – | – | – | – | – | – | – | – |
| 2000/01 | 398 | 222 | 176 | – | – | – | – | – | – | – | – |
| 1999/00 | 412 | 213 | 199 | – | – | – | – | – | – | – | – |
| 1998/99 | 416 | 207 | 209 | – | – | – | – | – | – | – | – |
| 1997/98 | 427 | 202 | 225 | – | – | – | – | – | – | – | – |
| 1996/97 | 446 | 209 | 237 | – | – | – | – | – | – | – | – |
| 1995/96 | 460 | 213 | 247 | – | – | – | – | – | – | – | – |
| 1994/95 | 469 | 210 | 259 | – | – | – | – | – | – | – | – |
| 1993/94 | 474 | 213 | 261 | – | – | – | – | – | – | – | – |
| 1983/84 | 337 | 164 | 173 | – | – | – | – | – | – | – | – |
| 1982/83 | 318 | 156 | 162 | – | – | – | – | – | – | – | – |
| 1981/82 | 318 | 145 | 173 | – | – | – | – | – | – | – | – |
| 1980/81 | 309 | 139 | 170 | – | – | – | – | – | – | – | – |
| 1979/80 | 216 | 93 | 123 | – | – | – | – | – | – | – | – |
| 1978/79 | 108 | – | – | – | – | – | – | – | – | – | – |
| 1977/78 | 80 | 33 | 47 | – | – | – | – | – | – | – | – |