St Columbanus National School
Dun Laoghaire · Roll number 20218P
- Catholic ethos
- DEIS
- Ordinary with Special Classes
- Pupils in 2025/26
- 113
- −2 on 2024/25
- Over 10 years
- +7%
- Up 7 from 106 in 2015/16
- Girls and boys
- 51 / 62
- 45% girls
Pupils since 2005
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
113 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 | 7 | 13 | 10 | 18 | 8 | 10 | 11.0 |
| Senior Infants | 10 | 7 | 11 | 11 | 17 | 11 | 11.2 |
| 1st Class | 17 | 10 | 7 | 11 | 12 | 18 | 12.5 |
| 2nd Class | 14 | 17 | 11 | 8 | 12 | 14 | 12.7 |
| 3rd Class | 11 | 13 | 18 | 11 | 7 | 17 | 12.8 |
| 4th Class | 6 | 11 | 14 | 21 | 11 | 11 | 12.3 |
| 5th Class | 8 | 5 | 11 | 15 | 19 | 11 | 11.5 |
| 6th Class | 20 | 8 | 6 | 13 | 17 | 21 | 14.2 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2024/25
8 in Junior Infants (2024/25), 11 in Senior Infants (2025/26): 3 pupils more.
- 8Junior Infants2024/25
- 11Senior Infants2025/26
Started Junior Infants in 2023/24
18 in Junior Infants (2023/24), 18 in 1st Class (2025/26): no change.
- 18Junior Infants2023/24
- 17Senior Infants2024/25
- 181st Class2025/26
Started Junior Infants in 2022/23
10 in Junior Infants (2022/23), 14 in 2nd Class (2025/26): 4 pupils more.
- 10Junior Infants2022/23
- 11Senior Infants2023/24
- 121st Class2024/25
- 142nd Class2025/26
Started Junior Infants in 2021/22
13 in Junior Infants (2021/22), 17 in 3rd Class (2025/26): 4 pupils more.
- 13Junior Infants2021/22
- 11Senior Infants2022/23
- 111st Class2023/24
- 122nd Class2024/25
- 173rd Class2025/26
Started Junior Infants in 2020/21
7 in Junior Infants (2020/21), 11 in 4th Class (2025/26): 4 pupils more.
- 7Junior Infants2020/21
- 7Senior Infants2021/22
- 71st Class2022/23
- 82nd Class2023/24
- 73rd Class2024/25
- 114th Class2025/26
In Senior Infants in 2020/21
10 in Senior Infants (2020/21), 11 in 5th Class (2025/26): 1 pupil more.
- 10Senior Infants2020/21
- 101st Class2021/22
- 112nd Class2022/23
- 113rd Class2023/24
- 114th Class2024/25
- 115th Class2025/26
In 1st Class in 2020/21
17 in 1st Class (2020/21), 21 in 6th Class (2025/26): 4 pupils more.
- 171st Class2020/21
- 172nd Class2021/22
- 183rd Class2022/23
- 214th Class2023/24
- 195th Class2024/25
- 216th Class2025/26
In 2nd Class in 2020/21
14 in 2nd Class (2020/21), 17 in 6th Class (2024/25): 3 pupils more.
- 142nd Class2020/21
- 133rd Class2021/22
- 144th Class2022/23
- 155th Class2023/24
- 176th Class2024/25
In 3rd Class in 2020/21
11 in 3rd Class (2020/21), 13 in 6th Class (2023/24): 2 pupils more.
- 113rd Class2020/21
- 114th Class2021/22
- 115th Class2022/23
- 136th Class2023/24
In 4th Class in 2020/21
6 in 4th Class (2020/21), 6 in 6th Class (2022/23): no change.
- 64th Class2020/21
- 55th Class2021/22
- 66th Class2022/23
In 5th Class in 2020/21
8 in 5th Class (2020/21), 8 in 6th Class (2021/22): no change.
- 85th Class2020/21
- 86th Class2021/22
Biggest one-year changes in a class
- +103rd Class in 2025/26 (7 to 17)
- −126th Class in 2021/22 (20 to 8)
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 St Columbanus National School, 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
13teaching posts
Our estimate: about 13 teachers.
- Class teachersOne for each of the 6 mainstream classes 6
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers75.5 hours of support teaching a week 3
- Special class teachersFor 3 autism classes 3
12.83 special needs assistants (SNAs) also work with pupils. 18 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 3 special education teachers, 3 special class teachers and 12.83 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. 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 St Columbanus National School, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| St Columbanus National SchoolThis school | – | 113 |
+6.6%
|
|
| 1 | Gaelscoil Phadraig0.2 km · Baile Breac · Gaelscoil · DEIS | 0.2 km | 118 |
−27.6%
|
| 2 | Scoil Cholmcille Junior NS0.9 km · Ballybrack · DEIS | 0.9 km | 124 |
−9.5%
|
| 3 | Scoil Colmcille Senior1.0 km · Ballybrack · DEIS | 1.0 km | 147 |
−26.5%
|
| 4 | St Johns N S1.0 km · Ballybrack · DEIS | 1.0 km | 165 |
+7.8%
|
| 5 | Rathmichael N S1.2 km · Dublin 18 · Church of Ireland | 1.2 km | 205 |
−3.3%
|
| 6 | Scoil Mhuire1.3 km · Dublin 18 · DEIS | 1.3 km | 249 |
−24.3%
|
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
- Carmel Murphy
- Phone
- 012821220
- [email protected]
- Address
- Loughlinstown Drive, Dun Laoghaire, Co. Dublin, A96 X0D1
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- All Through
- 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
- Ballybrack–Shankill–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
21 school years from 2005/06 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 113 | 51 | 62 | 10 | 11 | 18 | 14 | 17 | 11 | 11 | 21 |
| 2024/25 | 115 | 53 | 62 | 8 | 17 | 12 | 12 | 7 | 11 | 19 | 17 |
| 2023/24 | 120 | 56 | 64 | 18 | 11 | 11 | 8 | 11 | 21 | 15 | 13 |
| 2022/23 | 102 | 46 | 56 | 10 | 11 | 7 | 11 | 18 | 14 | 11 | 6 |
| 2021/22 | 95 | 44 | 51 | 13 | 7 | 10 | 17 | 13 | 11 | 5 | 8 |
| 2020/21 | 105 | 50 | 55 | 7 | 10 | 17 | 14 | 11 | 6 | 8 | 20 |
| 2019/20 | 108 | 51 | 57 | – | – | – | – | – | – | – | – |
| 2018/19 | 107 | 51 | 56 | – | – | – | – | – | – | – | – |
| 2017/18 | 102 | 44 | 58 | – | – | – | – | – | – | – | – |
| 2016/17 | 103 | 45 | 58 | – | – | – | – | – | – | – | – |
| 2015/16 | 106 | 48 | 58 | – | – | – | – | – | – | – | – |
| 2014/15 | 112 | 53 | 59 | – | – | – | – | – | – | – | – |
| 2013/14 | 120 | 55 | 65 | – | – | – | – | – | – | – | – |
| 2012/13 | 105 | 48 | 57 | – | – | – | – | – | – | – | – |
| 2011/12 | 101 | 50 | 51 | – | – | – | – | – | – | – | – |
| 2010/11 | 118 | 59 | 59 | – | – | – | – | – | – | – | – |
| 2009/10 | 123 | 65 | 58 | – | – | – | – | – | – | – | – |
| 2008/09 | 141 | 68 | 73 | – | – | – | – | – | – | – | – |
| 2007/08 | 131 | 59 | 72 | – | – | – | – | – | – | – | – |
| 2006/07 | 132 | 56 | 76 | – | – | – | – | – | – | – | – |
| 2005/06 | 162 | 62 | 100 | – | – | – | – | – | – | – | – |