S N Naomh Mochta
Dublin 15 · Roll number 18778S
- Catholic ethos
- Not DEIS
- Pupils in 2025/26
- 805
- −30 on 2024/25
- Over 10 years
- −9%
- Down 78 from 883 in 2015/16
- Girls and boys
- 386 / 419
- 48% 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
805 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 | 114 | 111 | 109 | 102 | 104 | 91 | 105.2 |
| Senior Infants | 116 | 109 | 109 | 107 | 102 | 100 | 107.2 |
| 1st Class | 112 | 111 | 103 | 106 | 105 | 99 | 106.0 |
| 2nd Class | 110 | 110 | 108 | 101 | 104 | 103 | 106.0 |
| 3rd Class | 103 | 107 | 111 | 106 | 101 | 101 | 104.8 |
| 4th Class | 107 | 102 | 105 | 108 | 107 | 97 | 104.3 |
| 5th Class | 105 | 106 | 104 | 104 | 108 | 107 | 105.7 |
| 6th Class | 117 | 104 | 107 | 103 | 104 | 107 | 107.0 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2024/25
104 in Junior Infants (2024/25), 100 in Senior Infants (2025/26): 4 pupils fewer.
- 104Junior Infants2024/25
- 100Senior Infants2025/26
Started Junior Infants in 2023/24
102 in Junior Infants (2023/24), 99 in 1st Class (2025/26): 3 pupils fewer.
- 102Junior Infants2023/24
- 102Senior Infants2024/25
- 991st Class2025/26
Started Junior Infants in 2022/23
109 in Junior Infants (2022/23), 103 in 2nd Class (2025/26): 6 pupils fewer.
- 109Junior Infants2022/23
- 107Senior Infants2023/24
- 1051st Class2024/25
- 1032nd Class2025/26
Started Junior Infants in 2021/22
111 in Junior Infants (2021/22), 101 in 3rd Class (2025/26): 10 pupils fewer.
- 111Junior Infants2021/22
- 109Senior Infants2022/23
- 1061st Class2023/24
- 1042nd Class2024/25
- 1013rd Class2025/26
Started Junior Infants in 2020/21
114 in Junior Infants (2020/21), 97 in 4th Class (2025/26): 17 pupils fewer.
- 114Junior Infants2020/21
- 109Senior Infants2021/22
- 1031st Class2022/23
- 1012nd Class2023/24
- 1013rd Class2024/25
- 974th Class2025/26
In Senior Infants in 2020/21
116 in Senior Infants (2020/21), 107 in 5th Class (2025/26): 9 pupils fewer.
- 116Senior Infants2020/21
- 1111st Class2021/22
- 1082nd Class2022/23
- 1063rd Class2023/24
- 1074th Class2024/25
- 1075th Class2025/26
In 1st Class in 2020/21
112 in 1st Class (2020/21), 107 in 6th Class (2025/26): 5 pupils fewer.
- 1121st Class2020/21
- 1102nd Class2021/22
- 1113rd Class2022/23
- 1084th Class2023/24
- 1085th Class2024/25
- 1076th Class2025/26
In 2nd Class in 2020/21
110 in 2nd Class (2020/21), 104 in 6th Class (2024/25): 6 pupils fewer.
- 1102nd Class2020/21
- 1073rd Class2021/22
- 1054th Class2022/23
- 1045th Class2023/24
- 1046th Class2024/25
In 3rd Class in 2020/21
103 in 3rd Class (2020/21), 103 in 6th Class (2023/24): no change.
- 1033rd Class2020/21
- 1024th Class2021/22
- 1045th Class2022/23
- 1036th Class2023/24
In 4th Class in 2020/21
107 in 4th Class (2020/21), 107 in 6th Class (2022/23): no change.
- 1074th Class2020/21
- 1065th Class2021/22
- 1076th Class2022/23
In 5th Class in 2020/21
105 in 5th Class (2020/21), 104 in 6th Class (2021/22): 1 pupil fewer.
- 1055th Class2020/21
- 1046th Class2021/22
Biggest one-year changes in a class
- +43rd Class in 2021/22 (103 to 107)
- −136th Class in 2021/22 (117 to 104)
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 S N Naomh Mochta, 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
44.1teaching posts
Our estimate: about 44 teachers.
- Class teachersOne for each of the 32 mainstream classes 32
- PrincipalRuns the school and doesn't teach a class 1
- Deputy principalDoesn't teach a class either, as larger schools and those with five or more special classes have one 1
- Special education teachers252.5 hours of support teaching a week 10.1
14.15 special needs assistants (SNAs) also work with pupils. 6 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 10 special education teachers, 2 special class teachers and 17.98 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 S N Naomh Mochta, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| S N Naomh MochtaThis school | – | 805 |
−8.8%
|
|
| 1 | Scoil Choilm Community NS0.7 km · Dublin 15 · Multi-denominational · DEIS | 0.7 km | 698 |
−2.6%
|
| 2 | SN Oilibheir0.8 km · Baile Átha Cliath 15 · Gaelscoil | 0.8 km | 266 |
+1.1%
|
| 3 | St Philips Senior N S0.9 km · Dublin 15 · DEIS | 0.9 km | 231 |
−15.1%
|
| 4 | St Philip the Apostle Junior N S0.9 km · Dublin 15 · DEIS | 0.9 km | 184 |
−37.2%
|
| 5 | St Francis Xavier J N S1.5 km · Dublin 15 | 1.5 km | 357 |
−12.7%
|
| 6 | St Francis Xavier Senior N S1.5 km · Dublin 15 | 1.5 km | 388 |
+19.0%
|
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
- Maria Farrell
- Phone
- 018130430
- [email protected]
- Address
- Porterstown Road, Clonsilla, Dublin 15, D15 Y316
School
- Ethos
- Catholic
- Patron
- Archbishop of Dublin
- School type
- Ordinary
- School level
- All Through
- 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
- BlanchardstownVge–D15
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 | 805 | 386 | 419 | 91 | 100 | 99 | 103 | 101 | 97 | 107 | 107 |
| 2024/25 | 835 | 397 | 438 | 104 | 102 | 105 | 104 | 101 | 107 | 108 | 104 |
| 2023/24 | 837 | 394 | 443 | 102 | 107 | 106 | 101 | 106 | 108 | 104 | 103 |
| 2022/23 | 856 | 395 | 461 | 109 | 109 | 103 | 108 | 111 | 105 | 104 | 107 |
| 2021/22 | 860 | 411 | 449 | 111 | 109 | 111 | 110 | 107 | 102 | 106 | 104 |
| 2020/21 | 884 | 422 | 462 | 114 | 116 | 112 | 110 | 103 | 107 | 105 | 117 |
| 2019/20 | 885 | 426 | 459 | – | – | – | – | – | – | – | – |
| 2018/19 | 892 | 418 | 474 | – | – | – | – | – | – | – | – |
| 2017/18 | 905 | 441 | 464 | – | – | – | – | – | – | – | – |
| 2016/17 | 906 | 450 | 456 | – | – | – | – | – | – | – | – |
| 2015/16 | 883 | 422 | 461 | – | – | – | – | – | – | – | – |
| 2014/15 | 884 | 432 | 452 | – | – | – | – | – | – | – | – |
| 2013/14 | 892 | 429 | 463 | – | – | – | – | – | – | – | – |
| 2012/13 | 867 | 420 | 447 | – | – | – | – | – | – | – | – |
| 2011/12 | 837 | 404 | 433 | – | – | – | – | – | – | – | – |
| 2010/11 | 811 | 383 | 428 | – | – | – | – | – | – | – | – |
| 2009/10 | 783 | 375 | 408 | – | – | – | – | – | – | – | – |
| 2008/09 | 733 | 356 | 377 | – | – | – | – | – | – | – | – |
| 2007/08 | 722 | 352 | 370 | – | – | – | – | – | – | – | – |
| 2006/07 | 686 | 328 | 358 | – | – | – | – | – | – | – | – |
| 2005/06 | 627 | 299 | 328 | – | – | – | – | – | – | – | – |
| 2004/05 | 592 | 280 | 312 | – | – | – | – | – | – | – | – |
| 2003/04 | 573 | 265 | 308 | – | – | – | – | – | – | – | – |
| 2002/03 | 532 | 248 | 284 | – | – | – | – | – | – | – | – |
| 2001/02 | 485 | 217 | 268 | – | – | – | – | – | – | – | – |
| 2000/01 | 479 | 221 | 258 | – | – | – | – | – | – | – | – |
| 1999/00 | 437 | 205 | 232 | – | – | – | – | – | – | – | – |
| 1998/99 | 399 | 188 | 211 | – | – | – | – | – | – | – | – |
| 1997/98 | 371 | 177 | 194 | – | – | – | – | – | – | – | – |
| 1996/97 | 324 | 159 | 165 | – | – | – | – | – | – | – | – |
| 1995/96 | 301 | 144 | 157 | – | – | – | – | – | – | – | – |
| 1994/95 | 291 | 145 | 146 | – | – | – | – | – | – | – | – |
| 1993/94 | 289 | 149 | 140 | – | – | – | – | – | – | – | – |
| 1983/84 | 269 | 120 | 149 | – | – | – | – | – | – | – | – |
| 1982/83 | 274 | 120 | 154 | – | – | – | – | – | – | – | – |
| 1981/82 | 272 | 127 | 145 | – | – | – | – | – | – | – | – |
| 1980/81 | 290 | 128 | 162 | – | – | – | – | – | – | – | – |
| 1979/80 | 268 | 116 | 152 | – | – | – | – | – | – | – | – |
| 1978/79 | 300 | – | – | – | – | – | – | – | – | – | – |
| 1977/78 | 279 | 133 | 146 | – | – | – | – | – | – | – | – |
| 1976/77 | 265 | 116 | 149 | – | – | – | – | – | – | – | – |
| 1975/76 | 267 | – | – | – | – | – | – | – | – | – | – |
| 1974/75 | 258 | 115 | 143 | – | – | – | – | – | – | – | – |