St Helens Senior N S
Portmarnock · Roll number 19762I
- Catholic ethos
- Not DEIS
- Ordinary with Special Classes
- Pupils in 2025/26
- 381
- +10 on 2024/25
- Over 10 years
- +43%
- Up 114 from 267 in 2015/16
- Girls and boys
- 187 / 194
- 49% girls
Pupils since 1981
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
381 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 | 102 | 84 | 86 | 92 | 77 | 93 | 89.0 |
| 4th Class | 86 | 103 | 88 | 90 | 96 | 81 | 90.7 |
| 5th Class | 86 | 87 | 106 | 89 | 90 | 108 | 94.3 |
| 6th Class | 83 | 92 | 91 | 101 | 96 | 99 | 93.7 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2020/21
77 in 3rd Class (2024/25), 81 in 4th Class (2025/26): 4 pupils more.
- 773rd Class2024/25
- 814th Class2025/26
In 3rd Class in 2023/24
92 in 3rd Class (2023/24), 108 in 5th Class (2025/26): 16 pupils more.
- 923rd Class2023/24
- 964th Class2024/25
- 1085th Class2025/26
In 3rd Class in 2022/23
86 in 3rd Class (2022/23), 99 in 6th Class (2025/26): 13 pupils more.
- 863rd Class2022/23
- 904th Class2023/24
- 905th Class2024/25
- 996th Class2025/26
In 3rd Class in 2021/22
84 in 3rd Class (2021/22), 96 in 6th Class (2024/25): 12 pupils more.
- 843rd Class2021/22
- 884th Class2022/23
- 895th Class2023/24
- 966th Class2024/25
In 3rd Class in 2020/21
102 in 3rd Class (2020/21), 101 in 6th Class (2023/24): 1 pupil fewer.
- 1023rd Class2020/21
- 1034th Class2021/22
- 1065th Class2022/23
- 1016th Class2023/24
In 4th Class in 2020/21
86 in 4th Class (2020/21), 91 in 6th Class (2022/23): 5 pupils more.
- 864th Class2020/21
- 875th Class2021/22
- 916th Class2022/23
In 5th Class in 2020/21
86 in 5th Class (2020/21), 92 in 6th Class (2021/22): 6 pupils more.
- 865th Class2020/21
- 926th Class2021/22
Biggest one-year changes in a class
- +195th Class in 2022/23 (87 to 106)
- −183rd Class in 2021/22 (102 to 84)
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 Helens Senior 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
22.4teaching posts
Our estimate: about 22 teachers.
- Class teachersOne for each of the 15 mainstream classes 15
- PrincipalRuns the school and doesn't teach a class 1
- Special education teachers110 hours of support teaching a week 4.4
- Special class teachersFor 2 autism classes 2
10 special needs assistants (SNAs) also work with pupils. 13 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 4.5 special education teachers, 2 special class teachers and 10 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 St Helens Senior N S, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| St Helens Senior N SThis school | – | 381 |
+42.7%
|
|
| 1 | St Helens Junior N S0.1 km · Portmarnock | 0.1 km | 319 |
−6.2%
|
| 2 | St Oliver Plunkett1.3 km · Malahide | 1.3 km | 838 |
−9.6%
|
| 3 | St Andrews N S1.5 km · Malahide · Church of Ireland | 1.5 km | 207 |
−12.7%
|
| 4 | Scoil Naomh Mearnog2.0 km · Portmarnock | 2.0 km | 638 |
+28.4%
|
| 5 | SN N Sailbheastar Nfa2.1 km · Malahide | 2.1 km | 365 |
−18.9%
|
| 6 | John Paul II N S2.7 km · Malahide | 2.7 km | 663 |
−2.5%
|
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
- Gwyn Bhreathnach
- Phone
- 018461808
- [email protected]
- Address
- Limetree Ave, Portmarnock, Co. Dublin, D13 X326
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- 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
- Fingal County Council
- Planning area
- Portmarnock
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
36 school years from 1981/82 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 381 | 187 | 194 | 0 | 0 | 0 | 0 | 93 | 81 | 108 | 99 |
| 2024/25 | 371 | 175 | 196 | – | – | – | – | 77 | 96 | 90 | 96 |
| 2023/24 | 383 | 180 | 203 | – | – | – | – | 92 | 90 | 89 | 101 |
| 2022/23 | 375 | 187 | 188 | – | – | – | – | 86 | 88 | 106 | 91 |
| 2021/22 | 366 | 176 | 190 | – | – | – | – | 84 | 103 | 87 | 92 |
| 2020/21 | 357 | 164 | 193 | – | – | – | – | 102 | 86 | 86 | 83 |
| 2019/20 | 331 | 157 | 174 | – | – | – | – | – | – | – | – |
| 2018/19 | 326 | 147 | 179 | – | – | – | – | – | – | – | – |
| 2017/18 | 312 | 143 | 169 | – | – | – | – | – | – | – | – |
| 2016/17 | 288 | 143 | 145 | – | – | – | – | – | – | – | – |
| 2015/16 | 267 | 132 | 135 | – | – | – | – | – | – | – | – |
| 2014/15 | 244 | 119 | 125 | – | – | – | – | – | – | – | – |
| 2013/14 | 234 | 113 | 121 | – | – | – | – | – | – | – | – |
| 2012/13 | 226 | 102 | 124 | – | – | – | – | – | – | – | – |
| 2011/12 | 224 | 103 | 121 | – | – | – | – | – | – | – | – |
| 2010/11 | 226 | 104 | 122 | – | – | – | – | – | – | – | – |
| 2009/10 | 224 | 106 | 118 | – | – | – | – | – | – | – | – |
| 2008/09 | 248 | 112 | 136 | – | – | – | – | – | – | – | – |
| 2007/08 | 270 | 130 | 140 | – | – | – | – | – | – | – | – |
| 2006/07 | 273 | 129 | 144 | – | – | – | – | – | – | – | – |
| 2005/06 | 287 | 144 | 143 | – | – | – | – | – | – | – | – |
| 2004/05 | 278 | 140 | 138 | – | – | – | – | – | – | – | – |
| 2003/04 | 281 | 129 | 152 | – | – | – | – | – | – | – | – |
| 2002/03 | 301 | 138 | 163 | – | – | – | – | – | – | – | – |
| 2001/02 | 302 | 138 | 164 | – | – | – | – | – | – | – | – |
| 2000/01 | 299 | 130 | 169 | – | – | – | – | – | – | – | – |
| 1999/00 | 301 | 136 | 165 | – | – | – | – | – | – | – | – |
| 1998/99 | 309 | 143 | 166 | – | – | – | – | – | – | – | – |
| 1997/98 | 332 | 150 | 182 | – | – | – | – | – | – | – | – |
| 1996/97 | 367 | 162 | 205 | – | – | – | – | – | – | – | – |
| 1995/96 | 394 | 177 | 217 | – | – | – | – | – | – | – | – |
| 1994/95 | 435 | 193 | 242 | – | – | – | – | – | – | – | – |
| 1993/94 | 492 | 215 | 277 | – | – | – | – | – | – | – | – |
| 1983/84 | 354 | 175 | 179 | – | – | – | – | – | – | – | – |
| 1982/83 | 234 | 115 | 119 | – | – | – | – | – | – | – | – |
| 1981/82 | 129 | 66 | 63 | – | – | – | – | – | – | – | – |