Drimnagh Castle CBS N S
Dublin 12 · Roll number 19837N
- Catholic ethos
- DEIS
- Pupils in 2025/26
- 342
- −1 on 2024/25
- Over 10 years
- −22%
- Down 95 from 437 in 2015/16
- Girls and boys
- 0 / 342
- 0% girls
Pupils since 1993
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
342 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 | 70 | 61 | 54 | 66 | 57 | 62 | 61.7 |
| 3rd Class | 62 | 72 | 61 | 57 | 71 | 63 | 64.3 |
| 4th Class | 74 | 65 | 77 | 67 | 65 | 72 | 70.0 |
| 5th Class | 68 | 75 | 68 | 75 | 72 | 67 | 70.8 |
| 6th Class | 73 | 68 | 76 | 65 | 78 | 78 | 73.0 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2021/22
57 in 2nd Class (2024/25), 63 in 3rd Class (2025/26): 6 pupils more.
- 572nd Class2024/25
- 633rd Class2025/26
Started Junior Infants in 2020/21
66 in 2nd Class (2023/24), 72 in 4th Class (2025/26): 6 pupils more.
- 662nd Class2023/24
- 713rd Class2024/25
- 724th Class2025/26
In 2nd Class in 2022/23
54 in 2nd Class (2022/23), 67 in 5th Class (2025/26): 13 pupils more.
- 542nd Class2022/23
- 573rd Class2023/24
- 654th Class2024/25
- 675th Class2025/26
In 2nd Class in 2021/22
61 in 2nd Class (2021/22), 78 in 6th Class (2025/26): 17 pupils more.
- 612nd Class2021/22
- 613rd Class2022/23
- 674th Class2023/24
- 725th Class2024/25
- 786th Class2025/26
In 2nd Class in 2020/21
70 in 2nd Class (2020/21), 78 in 6th Class (2024/25): 8 pupils more.
- 702nd Class2020/21
- 723rd Class2021/22
- 774th Class2022/23
- 755th Class2023/24
- 786th Class2024/25
In 3rd Class in 2020/21
62 in 3rd Class (2020/21), 65 in 6th Class (2023/24): 3 pupils more.
- 623rd Class2020/21
- 654th Class2021/22
- 685th Class2022/23
- 656th Class2023/24
In 4th Class in 2020/21
74 in 4th Class (2020/21), 76 in 6th Class (2022/23): 2 pupils more.
- 744th Class2020/21
- 755th Class2021/22
- 766th Class2022/23
In 5th Class in 2020/21
68 in 5th Class (2020/21), 68 in 6th Class (2021/22): no change.
- 685th Class2020/21
- 686th Class2021/22
Biggest one-year changes in a class
- +143rd Class in 2024/25 (57 to 71)
- −113rd Class in 2022/23 (72 to 61)
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 Drimnagh Castle CBS N S, 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
28teaching posts
Our estimate: about 28 teachers.
- Class teachersOne for each of the 14 mainstream classes 14
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers275 hours of support teaching a week 11
- Special class teachersFor 2 autism classes 2
10 special needs assistants (SNAs) also work with pupils.
The NCSE has allocated 11 special education teachers, 2 special class teachers and 14 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 Drimnagh Castle CBS N S, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| Drimnagh Castle CBS N SThis school | – | 342 |
−21.7%
|
|
| 1 | S N Muire na Freastogala Girls Senior School0.2 km · Dublin 12 · Girls | 0.2 km | 230 |
+26.4%
|
| 2 | Assumption Junior School0.2 km · Dublin 12 · DEIS | 0.2 km | 434 |
−17.8%
|
| 3 | Our Lady of Wayside N S0.9 km · Dublin 12 · DEIS | 0.9 km | 114 |
+4.6%
|
| 4 | S N Naomh Cillin1.0 km · Dublin 12 · DEIS | 1.0 km | 30 |
−6.2%
|
| 5 | Our Lady of Good Counsel Girls Senior School1.1 km · Dublin 12 · DEIS | 1.1 km | 135 |
+0.7%
|
| 6 | Lady of Good Counsel Boys Senior NS1.1 km · Dublin 12 · Boys · DEIS | 1.1 km | 120 |
−17.8%
|
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
- Bennet Kirwan
- Phone
- 014552066
- [email protected]
- Address
- Drimnagh Castle, Long Mile Road, Dublin 12, D12 C893
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary
- School level
- Senior
- DEIS
- DEIS
Language and area
- Irish classification
- No subjects through Irish
- Gaeltacht
- Non-Gaeltacht
- Island
- Not on an island
- Local authority
- Dublin City Council
- Planning area
- Dolphin's Barn–D12
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
33 school years from 1993/94 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 342 | 0 | 342 | 0 | 0 | 0 | 62 | 63 | 72 | 67 | 78 |
| 2024/25 | 343 | – | 343 | – | – | – | 57 | 71 | 65 | 72 | 78 |
| 2023/24 | 330 | 0 | 330 | – | – | – | 66 | 57 | 67 | 75 | 65 |
| 2022/23 | 336 | – | 336 | – | – | – | 54 | 61 | 77 | 68 | 76 |
| 2021/22 | 341 | – | 341 | – | – | – | 61 | 72 | 65 | 75 | 68 |
| 2020/21 | 347 | – | 347 | – | – | – | 70 | 62 | 74 | 68 | 73 |
| 2019/20 | 371 | – | 371 | – | – | – | – | – | – | – | – |
| 2018/19 | 403 | – | 403 | – | – | – | – | – | – | – | – |
| 2017/18 | 415 | – | 415 | – | – | – | – | – | – | – | – |
| 2016/17 | 421 | 0 | 421 | – | – | – | – | – | – | – | – |
| 2015/16 | 437 | 0 | 437 | – | – | – | – | – | – | – | – |
| 2014/15 | 452 | 0 | 452 | – | – | – | – | – | – | – | – |
| 2013/14 | 444 | 0 | 444 | – | – | – | – | – | – | – | – |
| 2012/13 | 430 | 0 | 430 | – | – | – | – | – | – | – | – |
| 2011/12 | 442 | 0 | 442 | – | – | – | – | – | – | – | – |
| 2010/11 | 433 | 0 | 433 | – | – | – | – | – | – | – | – |
| 2009/10 | 446 | 0 | 446 | – | – | – | – | – | – | – | – |
| 2008/09 | 451 | 0 | 451 | – | – | – | – | – | – | – | – |
| 2007/08 | 452 | 0 | 452 | – | – | – | – | – | – | – | – |
| 2006/07 | 448 | 0 | 448 | – | – | – | – | – | – | – | – |
| 2005/06 | 439 | 0 | 439 | – | – | – | – | – | – | – | – |
| 2004/05 | 412 | 0 | 412 | – | – | – | – | – | – | – | – |
| 2003/04 | 412 | 0 | 412 | – | – | – | – | – | – | – | – |
| 2002/03 | 434 | 0 | 434 | – | – | – | – | – | – | – | – |
| 2001/02 | 439 | 0 | 439 | – | – | – | – | – | – | – | – |
| 2000/01 | 479 | 0 | 479 | – | – | – | – | – | – | – | – |
| 1999/00 | 514 | 0 | 514 | – | – | – | – | – | – | – | – |
| 1998/99 | 525 | 0 | 525 | – | – | – | – | – | – | – | – |
| 1997/98 | 568 | 0 | 568 | – | – | – | – | – | – | – | – |
| 1996/97 | 586 | 0 | 586 | – | – | – | – | – | – | – | – |
| 1995/96 | 574 | – | 574 | – | – | – | – | – | – | – | – |
| 1994/95 | 614 | – | 614 | – | – | – | – | – | – | – | – |
| 1993/94 | 647 | – | 647 | – | – | – | – | – | – | – | – |