Gaelscoil Shliabh Rua
Baile Átha Cliath 18 · Roll number 20425U
- Multi Denominational ethos
- Not DEIS
- All subjects through Irish
- Pupils in 2025/26
- 359
- +11 on 2024/25
- Over 10 years
- +530%
- Up 302 from 57 in 2015/16. Opened in 2013/14, so it was still adding classes
- Girls and boys
- 185 / 174
- 52% girls
Pupils since 2013
Total enrolment each school year
Shaded: the last 10 years, 2015/16 to 2025/26.
Pupils by class
Published for each class from 2020/21.
This year, 2025/26
359 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 | 61 | 41 | 43 | 50 | 47 | 44 | 47.7 |
| Senior Infants | 51 | 60 | 41 | 42 | 51 | 47 | 48.7 |
| 1st Class | 38 | 46 | 60 | 40 | 44 | 51 | 46.5 |
| 2nd Class | 40 | 38 | 44 | 59 | 38 | 43 | 43.7 |
| 3rd Class | 44 | 37 | 36 | 43 | 59 | 36 | 42.5 |
| 4th Class | 39 | 39 | 34 | 37 | 42 | 57 | 41.3 |
| 5th Class | 5 | 38 | 35 | 31 | 37 | 42 | 31.3 |
| 6th Class | 7 | 3 | 35 | 34 | 30 | 39 | 24.7 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2024/25
47 in Junior Infants (2024/25), 47 in Senior Infants (2025/26): no change.
- 47Junior Infants2024/25
- 47Senior Infants2025/26
Started Junior Infants in 2023/24
50 in Junior Infants (2023/24), 51 in 1st Class (2025/26): 1 pupil more.
- 50Junior Infants2023/24
- 51Senior Infants2024/25
- 511st Class2025/26
Started Junior Infants in 2022/23
43 in Junior Infants (2022/23), 43 in 2nd Class (2025/26): no change.
- 43Junior Infants2022/23
- 42Senior Infants2023/24
- 441st Class2024/25
- 432nd Class2025/26
Started Junior Infants in 2021/22
41 in Junior Infants (2021/22), 36 in 3rd Class (2025/26): 5 pupils fewer.
- 41Junior Infants2021/22
- 41Senior Infants2022/23
- 401st Class2023/24
- 382nd Class2024/25
- 363rd Class2025/26
Started Junior Infants in 2020/21
61 in Junior Infants (2020/21), 57 in 4th Class (2025/26): 4 pupils fewer.
- 61Junior Infants2020/21
- 60Senior Infants2021/22
- 601st Class2022/23
- 592nd Class2023/24
- 593rd Class2024/25
- 574th Class2025/26
In Senior Infants in 2020/21
51 in Senior Infants (2020/21), 42 in 5th Class (2025/26): 9 pupils fewer.
- 51Senior Infants2020/21
- 461st Class2021/22
- 442nd Class2022/23
- 433rd Class2023/24
- 424th Class2024/25
- 425th Class2025/26
In 1st Class in 2020/21
38 in 1st Class (2020/21), 39 in 6th Class (2025/26): 1 pupil more.
- 381st Class2020/21
- 382nd Class2021/22
- 363rd Class2022/23
- 374th Class2023/24
- 375th Class2024/25
- 396th Class2025/26
In 2nd Class in 2020/21
40 in 2nd Class (2020/21), 30 in 6th Class (2024/25): 10 pupils fewer.
- 402nd Class2020/21
- 373rd Class2021/22
- 344th Class2022/23
- 315th Class2023/24
- 306th Class2024/25
In 3rd Class in 2020/21
44 in 3rd Class (2020/21), 34 in 6th Class (2023/24): 10 pupils fewer.
- 443rd Class2020/21
- 394th Class2021/22
- 355th Class2022/23
- 346th Class2023/24
In 4th Class in 2020/21
39 in 4th Class (2020/21), 35 in 6th Class (2022/23): 4 pupils fewer.
- 394th Class2020/21
- 385th Class2021/22
- 356th Class2022/23
In 5th Class in 2020/21
5 in 5th Class (2020/21), 3 in 6th Class (2021/22): 2 pupils fewer.
- 55th Class2020/21
- 36th Class2021/22
Biggest one-year changes in a class
- +335th Class in 2021/22 (5 to 38)
- −233rd Class in 2025/26 (59 to 36)
Class sizes
Mainstream class groups, 2013/14 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, 2013/14 to 2025/26
Teachers
Who teaches at Gaelscoil Shliabh Rua, 2013/14 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
21.7teaching posts
Our estimate: about 22 teachers.
- Class teachersOne for each of the 16 mainstream classes 16
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers117.5 hours of support teaching a week 4.7
4 special needs assistants (SNAs) also work with pupils.
The NCSE has allocated 4.9 special education teachers and 4 SNAs for next year.
Teachers since 2013/14
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. Where there's no principal bar, the principal also taught a class. 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 Gaelscoil Shliabh Rua, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| Gaelscoil Shliabh RuaThis school | – | 359 |
+529.8%
|
|
| 1 | Holy Trinity National School0.8 km · Dublin 18 | 0.8 km | 586 |
+37.6%
|
| 2 | Kilternan Church of Ireland NS1.7 km · Dublin 18 · Church of Ireland | 1.7 km | 206 |
−11.2%
|
| 3 | Gaelscoil Thaobh na Coille1.8 km · Baile Átha Cliath 18 · Gaelscoil | 1.8 km | 402 |
−9.0%
|
| 4 | St Brigids Girls N S1.9 km · Dublin 18 · Girls | 1.9 km | 499 |
−8.4%
|
| 5 | St Brigids Boys N S1.9 km · Dublin 18 · Boys | 1.9 km | 406 |
−20.9%
|
| 6 | Stepaside Educate Together National School2.0 km · Dublin 18 · Multi-denominational | 2.0 km | 542 |
+351.7%
|
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
- Ruth Mhic Adaim
- Phone
- 012958589
- [email protected]
- Address
- Bóthar Bhaile Uí Ógáin, BÁC 18, Baile Átha Cliath 18, D18 K0EN
School
- Ethos
- Multi Denominational
- Patron
- An Foras Pátrúnachta
- School type
- Ordinary
- School level
- All Through
- DEIS
- Not DEIS
Language and area
- Irish classification
- All subjects through Irish
- Gaeltacht
- Non-Gaeltacht
- Island
- Not on an island
- Local authority
- Dun Laoghaire Rathdown
- Planning area
- Sallynoggin–Killiney–DLR
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
13 school years from 2013/14 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 359 | 185 | 174 | 44 | 47 | 51 | 43 | 36 | 57 | 42 | 39 |
| 2024/25 | 348 | 175 | 173 | 47 | 51 | 44 | 38 | 59 | 42 | 37 | 30 |
| 2023/24 | 336 | 166 | 170 | 50 | 42 | 40 | 59 | 43 | 37 | 31 | 34 |
| 2022/23 | 328 | 166 | 162 | 43 | 41 | 60 | 44 | 36 | 34 | 35 | 35 |
| 2021/22 | 302 | 154 | 148 | 41 | 60 | 46 | 38 | 37 | 39 | 38 | 3 |
| 2020/21 | 285 | 149 | 136 | 61 | 51 | 38 | 40 | 44 | 39 | 5 | 7 |
| 2019/20 | 236 | 120 | 116 | – | – | – | – | – | – | – | – |
| 2018/19 | 199 | 103 | 96 | – | – | – | – | – | – | – | – |
| 2017/18 | 162 | 84 | 78 | – | – | – | – | – | – | – | – |
| 2016/17 | 120 | 66 | 54 | – | – | – | – | – | – | – | – |
| 2015/16 | 57 | 30 | 27 | – | – | – | – | – | – | – | – |
| 2014/15 | 12 | 6 | 6 | – | – | – | – | – | – | – | – |
| 2013/14 | 8 | 3 | 5 | – | – | – | – | – | – | – | – |