Scoil Colmcille Senior
Ballybrack · Roll number 19438W
- Catholic ethos
- DEIS
- Ordinary with Special Classes
- Pupils in 2025/26
- 147
- −6 on 2024/25
- Over 10 years
- −26%
- Down 53 from 200 in 2015/16
- Girls and boys
- 72 / 75
- 49% girls
Pupils since 1974
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
147 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 | 47 | 38 | 35 | 43 | 29 | 30 | 37.0 |
| 4th Class | 36 | 46 | 38 | 34 | 47 | 30 | 38.5 |
| 5th Class | 34 | 37 | 45 | 38 | 30 | 49 | 38.8 |
| 6th Class | 39 | 32 | 37 | 45 | 41 | 38 | 38.7 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2020/21
29 in 3rd Class (2024/25), 30 in 4th Class (2025/26): 1 pupil more.
- 293rd Class2024/25
- 304th Class2025/26
In 3rd Class in 2023/24
43 in 3rd Class (2023/24), 49 in 5th Class (2025/26): 6 pupils more.
- 433rd Class2023/24
- 474th Class2024/25
- 495th Class2025/26
In 3rd Class in 2022/23
35 in 3rd Class (2022/23), 38 in 6th Class (2025/26): 3 pupils more.
- 353rd Class2022/23
- 344th Class2023/24
- 305th Class2024/25
- 386th Class2025/26
In 3rd Class in 2021/22
38 in 3rd Class (2021/22), 41 in 6th Class (2024/25): 3 pupils more.
- 383rd Class2021/22
- 384th Class2022/23
- 385th Class2023/24
- 416th Class2024/25
In 3rd Class in 2020/21
47 in 3rd Class (2020/21), 45 in 6th Class (2023/24): 2 pupils fewer.
- 473rd Class2020/21
- 464th Class2021/22
- 455th Class2022/23
- 456th Class2023/24
In 4th Class in 2020/21
36 in 4th Class (2020/21), 37 in 6th Class (2022/23): 1 pupil more.
- 364th Class2020/21
- 375th Class2021/22
- 376th Class2022/23
In 5th Class in 2020/21
34 in 5th Class (2020/21), 32 in 6th Class (2021/22): 2 pupils fewer.
- 345th Class2020/21
- 326th Class2021/22
Biggest one-year changes in a class
- +195th Class in 2025/26 (30 to 49)
- −174th Class in 2025/26 (47 to 30)
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 Colmcille Senior, 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
14.7teaching posts
Our estimate: about 15 teachers.
- Class teachersOne for each of the 7 mainstream classes 7
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers142.5 hours of support teaching a week 5.7
- Special class teachersFor an autism class 1
9 special needs assistants (SNAs) also work with pupils. 6 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 5.7 special education teachers, 1 special class teacher and 9 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 Colmcille Senior, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| Scoil Colmcille SeniorThis school | – | 147 |
−26.5%
|
|
| 1 | Scoil Cholmcille Junior NS0.1 km · Ballybrack · DEIS | 0.1 km | 124 |
−9.5%
|
| 2 | St Johns N S0.5 km · Ballybrack · DEIS | 0.5 km | 165 |
+7.8%
|
| 3 | Gaelscoil Phadraig1.0 km · Baile Breac · Gaelscoil · DEIS | 1.0 km | 118 |
−27.6%
|
| 4 | St Columbanus National School1.0 km · Dun Laoghaire · DEIS | 1.0 km | 113 |
+6.6%
|
| 5 | Our Lady Good Counsel GNS1.1 km · Dun Laoghaire | 1.1 km | 398 |
−13.5%
|
| 6 | Our Lady of Good Counsel Boys N S1.1 km · Dún Laoghaire · Boys | 1.1 km | 389 |
−10.0%
|
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
- Niamh O Hanlon
- Phone
- 012848899
- [email protected]
- Address
- Coolevin, Ballybrack, Co. Dublin, A96 TN32
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- Senior
- DEIS
- DEIS
Language and area
- Irish classification
- No 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
42 school years from 1974/75 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 147 | 72 | 75 | 0 | 0 | 0 | 0 | 30 | 30 | 49 | 38 |
| 2024/25 | 153 | 73 | 80 | – | – | – | – | 29 | 47 | 30 | 41 |
| 2023/24 | 164 | 74 | 90 | – | – | – | – | 43 | 34 | 38 | 45 |
| 2022/23 | 158 | 67 | 91 | – | – | – | – | 35 | 38 | 45 | 37 |
| 2021/22 | 155 | 62 | 93 | – | – | – | – | 38 | 46 | 37 | 32 |
| 2020/21 | 156 | 63 | 93 | – | – | – | – | 47 | 36 | 34 | 39 |
| 2019/20 | 141 | 66 | 75 | – | – | – | – | – | – | – | – |
| 2018/19 | 153 | 71 | 82 | – | – | – | – | – | – | – | – |
| 2017/18 | 163 | 80 | 83 | – | – | – | – | – | – | – | – |
| 2016/17 | 181 | 87 | 94 | – | – | – | – | – | – | – | – |
| 2015/16 | 200 | 98 | 102 | – | – | – | – | – | – | – | – |
| 2014/15 | 205 | 107 | 98 | – | – | – | – | – | – | – | – |
| 2013/14 | 193 | 95 | 98 | – | – | – | – | – | – | – | – |
| 2012/13 | 183 | 88 | 95 | – | – | – | – | – | – | – | – |
| 2011/12 | 165 | 73 | 92 | – | – | – | – | – | – | – | – |
| 2010/11 | 170 | 66 | 104 | – | – | – | – | – | – | – | – |
| 2009/10 | 177 | 59 | 118 | – | – | – | – | – | – | – | – |
| 2008/09 | 170 | 57 | 113 | – | – | – | – | – | – | – | – |
| 2007/08 | 177 | 62 | 115 | – | – | – | – | – | – | – | – |
| 2006/07 | 174 | 70 | 104 | – | – | – | – | – | – | – | – |
| 2005/06 | 187 | 82 | 105 | – | – | – | – | – | – | – | – |
| 2004/05 | 199 | 91 | 108 | – | – | – | – | – | – | – | – |
| 2003/04 | 226 | 104 | 122 | – | – | – | – | – | – | – | – |
| 2002/03 | 221 | 106 | 115 | – | – | – | – | – | – | – | – |
| 2001/02 | 216 | 96 | 120 | – | – | – | – | – | – | – | – |
| 2000/01 | 208 | 92 | 116 | – | – | – | – | – | – | – | – |
| 1999/00 | 198 | 82 | 116 | – | – | – | – | – | – | – | – |
| 1998/99 | 229 | 105 | 124 | – | – | – | – | – | – | – | – |
| 1997/98 | 223 | 112 | 111 | – | – | – | – | – | – | – | – |
| 1996/97 | 212 | 104 | 108 | – | – | – | – | – | – | – | – |
| 1995/96 | 211 | 102 | 109 | – | – | – | – | – | – | – | – |
| 1994/95 | 212 | 101 | 111 | – | – | – | – | – | – | – | – |
| 1993/94 | 227 | 104 | 123 | – | – | – | – | – | – | – | – |
| 1983/84 | 478 | 234 | 244 | – | – | – | – | – | – | – | – |
| 1982/83 | 502 | 243 | 259 | – | – | – | – | – | – | – | – |
| 1981/82 | 476 | 237 | 239 | – | – | – | – | – | – | – | – |
| 1980/81 | 498 | 253 | 245 | – | – | – | – | – | – | – | – |
| 1978/79 | 885 | – | – | – | – | – | – | – | – | – | – |
| 1977/78 | 817 | 390 | 427 | – | – | – | – | – | – | – | – |
| 1976/77 | 707 | 346 | 361 | – | – | – | – | – | – | – | – |
| 1975/76 | 572 | – | – | – | – | – | – | – | – | – | – |
| 1974/75 | 149 | 70 | 79 | – | – | – | – | – | – | – | – |