St Fiachras Sen N S
Dublin 5 · Roll number 19628E
- Catholic ethos
- Not DEIS
- Pupils in 2025/26
- 609
- −24 on 2024/25
- Over 10 years
- −4%
- Down 24 from 633 in 2015/16
- Girls and boys
- 319 / 290
- 52% girls
Pupils since 1978
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
609 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 | 157 | 183 | 164 | 153 | 152 | 155 | 160.7 |
| 4th Class | 177 | 155 | 179 | 159 | 151 | 149 | 161.7 |
| 5th Class | 189 | 175 | 151 | 178 | 159 | 150 | 167.0 |
| 6th Class | 197 | 183 | 172 | 152 | 171 | 155 | 171.7 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2020/21
152 in 3rd Class (2024/25), 149 in 4th Class (2025/26): 3 pupils fewer.
- 1523rd Class2024/25
- 1494th Class2025/26
In 3rd Class in 2023/24
153 in 3rd Class (2023/24), 150 in 5th Class (2025/26): 3 pupils fewer.
- 1533rd Class2023/24
- 1514th Class2024/25
- 1505th Class2025/26
In 3rd Class in 2022/23
164 in 3rd Class (2022/23), 155 in 6th Class (2025/26): 9 pupils fewer.
- 1643rd Class2022/23
- 1594th Class2023/24
- 1595th Class2024/25
- 1556th Class2025/26
In 3rd Class in 2021/22
183 in 3rd Class (2021/22), 171 in 6th Class (2024/25): 12 pupils fewer.
- 1833rd Class2021/22
- 1794th Class2022/23
- 1785th Class2023/24
- 1716th Class2024/25
In 3rd Class in 2020/21
157 in 3rd Class (2020/21), 152 in 6th Class (2023/24): 5 pupils fewer.
- 1573rd Class2020/21
- 1554th Class2021/22
- 1515th Class2022/23
- 1526th Class2023/24
In 4th Class in 2020/21
177 in 4th Class (2020/21), 172 in 6th Class (2022/23): 5 pupils fewer.
- 1774th Class2020/21
- 1755th Class2021/22
- 1726th Class2022/23
In 5th Class in 2020/21
189 in 5th Class (2020/21), 183 in 6th Class (2021/22): 6 pupils fewer.
- 1895th Class2020/21
- 1836th Class2021/22
Biggest one-year changes in a class
- +275th Class in 2023/24 (151 to 178)
- −245th Class in 2022/23 (175 to 151)
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 Fiachras Sen 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
34.5teaching posts
Our estimate: about 34 teachers.
- Class teachersOne for each of the 24 mainstream classes 24
- 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 teachers212.5 hours of support teaching a week 8.5
5 special needs assistants (SNAs) also work with pupils.
The NCSE has allocated 8.4 special education teachers and 5 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 Fiachras Sen N S, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| St Fiachras Sen N SThis school | – | 609 |
−3.8%
|
|
| 1 | Scoil Fhiachra Soisir0.1 km · Dublin 5 | 0.1 km | 557 |
−24.7%
|
| 2 | St Davids N S0.5 km · Dublin 5 · DEIS | 0.5 km | 308 |
−1.9%
|
| 3 | St John of God N S0.5 km · Dublin 5 · DEIS | 0.5 km | 182 |
+4.0%
|
| 4 | Cromcastle Green B N S0.8 km · Dublin 5 · Boys · DEIS | 0.8 km | 183 |
−11.2%
|
| 5 | Scoil Nais Ide Cailini0.9 km · Dublin 5 · DEIS | 0.9 km | 156 |
−4.9%
|
| 6 | Gaelscoil Cholmcille1.0 km · Baile Átha Cliath 17 · Gaelscoil | 1.0 km | 209 |
−14.3%
|
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
- Aidan Campbell
- Phone
- 018477762
- [email protected]
- Address
- St. Fiachras SNS, Montrose Park, Beaumont, Dublin 5, D05 K3C3
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
- Dublin City Council
- Planning area
- Beaumont–CoolockD5
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
38 school years from 1978/79 to 2025/26. Class figures start in 2020/21.
| Year | Total | Girls | Boys | JI | SI | 1st | 2nd | 3rd | 4th | 5th | 6th |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | 609 | 319 | 290 | 0 | 0 | 0 | 0 | 155 | 149 | 150 | 155 |
| 2024/25 | 633 | 327 | 306 | – | – | – | – | 152 | 151 | 159 | 171 |
| 2023/24 | 642 | 322 | 320 | – | – | – | – | 153 | 159 | 178 | 152 |
| 2022/23 | 666 | 335 | 331 | – | – | – | – | 164 | 179 | 151 | 172 |
| 2021/22 | 696 | 344 | 352 | – | – | – | – | 183 | 155 | 175 | 183 |
| 2020/21 | 720 | 355 | 365 | – | – | – | – | 157 | 177 | 189 | 197 |
| 2019/20 | 724 | 363 | 361 | – | – | – | – | – | – | – | – |
| 2018/19 | 714 | 354 | 360 | – | – | – | – | – | – | – | – |
| 2017/18 | 675 | 327 | 348 | – | – | – | – | – | – | – | – |
| 2016/17 | 637 | 322 | 315 | – | – | – | – | – | – | – | – |
| 2015/16 | 633 | 311 | 322 | – | – | – | – | – | – | – | – |
| 2014/15 | 608 | 298 | 310 | – | – | – | – | – | – | – | – |
| 2013/14 | 619 | 307 | 312 | – | – | – | – | – | – | – | – |
| 2012/13 | 605 | 290 | 315 | – | – | – | – | – | – | – | – |
| 2011/12 | 594 | 280 | 314 | – | – | – | – | – | – | – | – |
| 2010/11 | 644 | 301 | 343 | – | – | – | – | – | – | – | – |
| 2009/10 | 655 | 308 | 347 | – | – | – | – | – | – | – | – |
| 2008/09 | 673 | 320 | 353 | – | – | – | – | – | – | – | – |
| 2007/08 | 670 | 323 | 347 | – | – | – | – | – | – | – | – |
| 2006/07 | 658 | 303 | 355 | – | – | – | – | – | – | – | – |
| 2005/06 | 648 | 288 | 360 | – | – | – | – | – | – | – | – |
| 2004/05 | 649 | 287 | 362 | – | – | – | – | – | – | – | – |
| 2003/04 | 648 | 301 | 347 | – | – | – | – | – | – | – | – |
| 2002/03 | 642 | 304 | 338 | – | – | – | – | – | – | – | – |
| 2001/02 | 611 | 290 | 321 | – | – | – | – | – | – | – | – |
| 2000/01 | 581 | 271 | 310 | – | – | – | – | – | – | – | – |
| 1999/00 | 541 | 247 | 294 | – | – | – | – | – | – | – | – |
| 1998/99 | 572 | 263 | 309 | – | – | – | – | – | – | – | – |
| 1997/98 | 592 | 285 | 307 | – | – | – | – | – | – | – | – |
| 1996/97 | 587 | 289 | 298 | – | – | – | – | – | – | – | – |
| 1995/96 | 585 | 286 | 299 | – | – | – | – | – | – | – | – |
| 1994/95 | 588 | 292 | 296 | – | – | – | – | – | – | – | – |
| 1993/94 | 604 | 300 | 304 | – | – | – | – | – | – | – | – |
| 1982/83 | 854 | 460 | 394 | – | – | – | – | – | – | – | – |
| 1981/82 | 757 | 413 | 344 | – | – | – | – | – | – | – | – |
| 1980/81 | 589 | 330 | 259 | – | – | – | – | – | – | – | – |
| 1979/80 | 387 | 228 | 159 | – | – | – | – | – | – | – | – |
| 1978/79 | 164 | 112 | 52 | – | – | – | – | – | – | – | – |