Harold Boys N S
Dalkey · Roll number 15132B
- Catholic ethos
- Not DEIS
- Pupils in 2025/26
- 106
- −7 on 2024/25
- Over 10 years
- −12%
- Down 15 from 121 in 2015/16
- Girls and boys
- 0 / 106
- 0% 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
106 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 | 21 | 24 | 24 | 25 | 19 | 17 | 21.7 |
| 3rd Class | 30 | 20 | 25 | 23 | 25 | 20 | 23.8 |
| 4th Class | 25 | 29 | 20 | 26 | 22 | 25 | 24.5 |
| 5th Class | 27 | 25 | 29 | 21 | 26 | 23 | 25.2 |
| 6th Class | 22 | 24 | 22 | 30 | 21 | 21 | 23.3 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2021/22
19 in 2nd Class (2024/25), 20 in 3rd Class (2025/26): 1 pupil more.
- 192nd Class2024/25
- 203rd Class2025/26
Started Junior Infants in 2020/21
25 in 2nd Class (2023/24), 25 in 4th Class (2025/26): no change.
- 252nd Class2023/24
- 253rd Class2024/25
- 254th Class2025/26
In 2nd Class in 2022/23
24 in 2nd Class (2022/23), 23 in 5th Class (2025/26): 1 pupil fewer.
- 242nd Class2022/23
- 233rd Class2023/24
- 224th Class2024/25
- 235th Class2025/26
In 2nd Class in 2021/22
24 in 2nd Class (2021/22), 21 in 6th Class (2025/26): 3 pupils fewer.
- 242nd Class2021/22
- 253rd Class2022/23
- 264th Class2023/24
- 265th Class2024/25
- 216th Class2025/26
In 2nd Class in 2020/21
21 in 2nd Class (2020/21), 21 in 6th Class (2024/25): no change.
- 212nd Class2020/21
- 203rd Class2021/22
- 204th Class2022/23
- 215th Class2023/24
- 216th Class2024/25
In 3rd Class in 2020/21
30 in 3rd Class (2020/21), 30 in 6th Class (2023/24): no change.
- 303rd Class2020/21
- 294th Class2021/22
- 295th Class2022/23
- 306th Class2023/24
In 4th Class in 2020/21
25 in 4th Class (2020/21), 22 in 6th Class (2022/23): 3 pupils fewer.
- 254th Class2020/21
- 255th Class2021/22
- 226th Class2022/23
In 5th Class in 2020/21
27 in 5th Class (2020/21), 24 in 6th Class (2021/22): 3 pupils fewer.
- 275th Class2020/21
- 246th Class2021/22
Biggest one-year changes in a class
- +86th Class in 2023/24 (22 to 30)
- −103rd Class in 2021/22 (30 to 20)
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 Harold Boys 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
7.4teaching posts
Our estimate: about 7 teachers.
- Class teachersOne for each of the 5 mainstream classes 5
- PrincipalAlso teaches one of the classes, so is counted with the class teachers in a class
- Special education teachers60 hours of support teaching a week 2.4
6 special needs assistants (SNAs) also work with pupils.
The NCSE has allocated 2.3 special education teachers and 6 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 Harold Boys N S, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| Harold Boys N SThis school | – | 106 |
−12.4%
|
|
| 1 | Loreto National School0.3 km · Dalkey | 0.3 km | 314 |
−16.9%
|
| 2 | Dalkey N S (2)0.4 km · Dalkey · Church of Ireland | 0.4 km | 101 |
+1.0%
|
| 3 | S N Gleann na gCaorach Iníon Léinín1.3 km · Killiney · Church of Ireland | 1.3 km | 211 |
−9.1%
|
| 4 | The Harold School1.7 km · Glasthule | 1.7 km | 642 |
−5.6%
|
| 5 | Dalkey School Project2.0 km · Glenageary · Multi-denominational | 2.0 km | 220 |
−8.3%
|
| 6 | Sallynoggin Educate Together National School2.1 km · Sallynoggin · Multi-denominational | 2.1 km | 45 | – |
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
- Pauline Lennon
- Phone
- 012856193
- [email protected]
- Address
- St. Patrick's Road, Dalkey, Co. Dublin, A96 PY94
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary
- 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
- Dun Laoghaire Rathdown
- Planning area
- Dunlaoghaire
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
43 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 | 106 | 0 | 106 | 0 | 0 | 0 | 17 | 20 | 25 | 23 | 21 |
| 2024/25 | 113 | 0 | 113 | – | – | – | 19 | 25 | 22 | 26 | 21 |
| 2023/24 | 125 | 0 | 125 | – | – | – | 25 | 23 | 26 | 21 | 30 |
| 2022/23 | 120 | – | 120 | – | – | – | 24 | 25 | 20 | 29 | 22 |
| 2021/22 | 122 | – | 122 | – | – | – | 24 | 20 | 29 | 25 | 24 |
| 2020/21 | 125 | – | 125 | – | – | – | 21 | 30 | 25 | 27 | 22 |
| 2019/20 | 132 | – | 132 | – | – | – | – | – | – | – | – |
| 2018/19 | 122 | – | 122 | – | – | – | – | – | – | – | – |
| 2017/18 | 119 | – | 119 | – | – | – | – | – | – | – | – |
| 2016/17 | 120 | 0 | 120 | – | – | – | – | – | – | – | – |
| 2015/16 | 121 | 0 | 121 | – | – | – | – | – | – | – | – |
| 2014/15 | 125 | 0 | 125 | – | – | – | – | – | – | – | – |
| 2013/14 | 121 | 0 | 121 | – | – | – | – | – | – | – | – |
| 2012/13 | 110 | 0 | 110 | – | – | – | – | – | – | – | – |
| 2011/12 | 94 | 0 | 94 | – | – | – | – | – | – | – | – |
| 2010/11 | 89 | 0 | 89 | – | – | – | – | – | – | – | – |
| 2009/10 | 90 | 0 | 90 | – | – | – | – | – | – | – | – |
| 2008/09 | 79 | 0 | 79 | – | – | – | – | – | – | – | – |
| 2007/08 | 78 | 0 | 78 | – | – | – | – | – | – | – | – |
| 2006/07 | 85 | 0 | 85 | – | – | – | – | – | – | – | – |
| 2005/06 | 79 | 0 | 79 | – | – | – | – | – | – | – | – |
| 2004/05 | 75 | 0 | 75 | – | – | – | – | – | – | – | – |
| 2003/04 | 88 | 0 | 88 | – | – | – | – | – | – | – | – |
| 2002/03 | 91 | 0 | 91 | – | – | – | – | – | – | – | – |
| 2001/02 | 92 | 0 | 92 | – | – | – | – | – | – | – | – |
| 2000/01 | 91 | 0 | 91 | – | – | – | – | – | – | – | – |
| 1999/00 | 92 | – | 92 | – | – | – | – | – | – | – | – |
| 1998/99 | 92 | 0 | 92 | – | – | – | – | – | – | – | – |
| 1997/98 | 94 | 0 | 94 | – | – | – | – | – | – | – | – |
| 1996/97 | 96 | 0 | 96 | – | – | – | – | – | – | – | – |
| 1995/96 | 98 | 6 | 92 | – | – | – | – | – | – | – | – |
| 1994/95 | 100 | 6 | 94 | – | – | – | – | – | – | – | – |
| 1993/94 | 96 | – | 96 | – | – | – | – | – | – | – | – |
| 1983/84 | 107 | 0 | 107 | – | – | – | – | – | – | – | – |
| 1982/83 | 128 | 0 | 128 | – | – | – | – | – | – | – | – |
| 1981/82 | 147 | – | 147 | – | – | – | – | – | – | – | – |
| 1980/81 | 145 | 0 | 145 | – | – | – | – | – | – | – | – |
| 1979/80 | 147 | 0 | 147 | – | – | – | – | – | – | – | – |
| 1978/79 | 164 | – | – | – | – | – | – | – | – | – | – |
| 1977/78 | 176 | 0 | 176 | – | – | – | – | – | – | – | – |
| 1976/77 | 191 | 0 | 191 | – | – | – | – | – | – | – | – |
| 1975/76 | 212 | – | – | – | – | – | – | – | – | – | – |
| 1974/75 | 209 | 0 | 209 | – | – | – | – | – | – | – | – |