S N an Tslanaitheora B
Dundalk · Roll number 19246N
- Catholic ethos
- DEIS
- Ordinary with Special Classes
- Pupils in 2025/26
- 169
- +3 on 2024/25
- Over 10 years
- +101%
- Up 85 from 84 in 2015/16
- Girls and boys
- 0 / 169
- 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
169 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 | 12 | 18 | 28 | 14 | 16 | 23 | 18.5 |
| Senior Infants | 16 | 11 | 18 | 28 | 14 | 17 | 17.3 |
| 1st Class | 21 | 16 | 14 | 16 | 28 | 14 | 18.2 |
| 2nd Class | 13 | 22 | 17 | 13 | 15 | 30 | 18.3 |
| 3rd Class | 13 | 14 | 23 | 15 | 17 | 18 | 16.7 |
| 4th Class | 14 | 16 | 16 | 24 | 21 | 20 | 18.5 |
| 5th Class | 9 | 17 | 17 | 15 | 23 | 22 | 17.2 |
| 6th Class | 12 | 12 | 17 | 16 | 20 | 25 | 17.0 |
JI and SI are Junior and Senior Infants.
Started Junior Infants in 2024/25
16 in Junior Infants (2024/25), 17 in Senior Infants (2025/26): 1 pupil more.
- 16Junior Infants2024/25
- 17Senior Infants2025/26
Started Junior Infants in 2023/24
14 in Junior Infants (2023/24), 14 in 1st Class (2025/26): no change.
- 14Junior Infants2023/24
- 14Senior Infants2024/25
- 141st Class2025/26
Started Junior Infants in 2022/23
28 in Junior Infants (2022/23), 30 in 2nd Class (2025/26): 2 pupils more.
- 28Junior Infants2022/23
- 28Senior Infants2023/24
- 281st Class2024/25
- 302nd Class2025/26
Started Junior Infants in 2021/22
18 in Junior Infants (2021/22), 18 in 3rd Class (2025/26): no change.
- 18Junior Infants2021/22
- 18Senior Infants2022/23
- 161st Class2023/24
- 152nd Class2024/25
- 183rd Class2025/26
Started Junior Infants in 2020/21
12 in Junior Infants (2020/21), 20 in 4th Class (2025/26): 8 pupils more.
- 12Junior Infants2020/21
- 11Senior Infants2021/22
- 141st Class2022/23
- 132nd Class2023/24
- 173rd Class2024/25
- 204th Class2025/26
In Senior Infants in 2020/21
16 in Senior Infants (2020/21), 22 in 5th Class (2025/26): 6 pupils more.
- 16Senior Infants2020/21
- 161st Class2021/22
- 172nd Class2022/23
- 153rd Class2023/24
- 214th Class2024/25
- 225th Class2025/26
In 1st Class in 2020/21
21 in 1st Class (2020/21), 25 in 6th Class (2025/26): 4 pupils more.
- 211st Class2020/21
- 222nd Class2021/22
- 233rd Class2022/23
- 244th Class2023/24
- 235th Class2024/25
- 256th Class2025/26
In 2nd Class in 2020/21
13 in 2nd Class (2020/21), 20 in 6th Class (2024/25): 7 pupils more.
- 132nd Class2020/21
- 143rd Class2021/22
- 164th Class2022/23
- 155th Class2023/24
- 206th Class2024/25
In 3rd Class in 2020/21
13 in 3rd Class (2020/21), 16 in 6th Class (2023/24): 3 pupils more.
- 133rd Class2020/21
- 164th Class2021/22
- 175th Class2022/23
- 166th Class2023/24
In 4th Class in 2020/21
14 in 4th Class (2020/21), 17 in 6th Class (2022/23): 3 pupils more.
- 144th Class2020/21
- 175th Class2021/22
- 176th Class2022/23
In 5th Class in 2020/21
9 in 5th Class (2020/21), 12 in 6th Class (2021/22): 3 pupils more.
- 95th Class2020/21
- 126th Class2021/22
Biggest one-year changes in a class
- +152nd Class in 2025/26 (15 to 30)
- −14Junior Infants in 2023/24 (28 to 14)
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 an Tslanaitheora B, 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
15.5teaching posts
Our estimate: about 16 teachers.
- Class teachersOne for each of the 8 mainstream classes 8
- PrincipalDoesn't teach a class: schools with two or more special classes have a full-time principal 1
- Special education teachers112.5 hours of support teaching a week 4.5
- Special class teachersFor 2 autism classes 2
11 special needs assistants (SNAs) also work with pupils. 12 pupils are in special classes, which the class sizes leave out.
The NCSE has allocated 4.6 special education teachers, 2 special class teachers and 11 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 S N an Tslanaitheora B, measured in a straight line. Pupil numbers are for 2025/26.
| Number on map | School | Distance | Pupils | Since 2015/16 |
|---|---|---|---|---|
| S N an Tslanaitheora BThis school | – | 169 |
+101.2%
|
|
| 1 | S N an Tslanaitheora C0.0 km · Dundalk · DEIS | 0.0 km | 160 |
+60.0%
|
| 2 | S N N Maolmhaodhagh B0.7 km · Dundalk · Boys | 0.7 km | 246 |
+22.4%
|
| 3 | S N N Maolmhaodhagh C0.7 km · Dundalk · Girls | 0.7 km | 233 |
+9.9%
|
| 4 | S N N Maolmhaodhagh N0.7 km · Dundalk | 0.7 km | 220 |
−13.0%
|
| 5 | St Nicholas Monastery NS0.8 km · Dundalk · Boys · DEIS | 0.8 km | 164 |
−3.0%
|
| 6 | Castletown RD Convent0.8 km · Dundalk · Girls · DEIS | 0.8 km | 191 |
+16.5%
|
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
- Michelle Carmel Murray
- Phone
- 0429332053
- [email protected]
- Address
- Ard Easmuinn, Dundalk, Co. Louth, A91 DN76
School
- Ethos
- Catholic
- Patron
- Archbishop of Armagh
- School type
- Ordinary with Special Classes
- School level
- All Through
- DEIS
- DEIS
Language and area
- Irish classification
- No subjects through Irish
- Gaeltacht
- Non-Gaeltacht
- Island
- Not on an island
- Local authority
- Louth County Council
- Planning area
- Dundalk
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 | 169 | 0 | 169 | 23 | 17 | 14 | 30 | 18 | 20 | 22 | 25 |
| 2024/25 | 166 | – | 166 | 16 | 14 | 28 | 15 | 17 | 21 | 23 | 20 |
| 2023/24 | 153 | 0 | 153 | 14 | 28 | 16 | 13 | 15 | 24 | 15 | 16 |
| 2022/23 | 162 | – | 162 | 28 | 18 | 14 | 17 | 23 | 16 | 17 | 17 |
| 2021/22 | 138 | – | 138 | 18 | 11 | 16 | 22 | 14 | 16 | 17 | 12 |
| 2020/21 | 122 | – | 122 | 12 | 16 | 21 | 13 | 13 | 14 | 9 | 12 |
| 2019/20 | 105 | – | 105 | – | – | – | – | – | – | – | – |
| 2018/19 | 100 | – | 100 | – | – | – | – | – | – | – | – |
| 2017/18 | 85 | – | 85 | – | – | – | – | – | – | – | – |
| 2016/17 | 82 | 0 | 82 | – | – | – | – | – | – | – | – |
| 2015/16 | 84 | 0 | 84 | – | – | – | – | – | – | – | – |
| 2014/15 | 85 | 0 | 85 | – | – | – | – | – | – | – | – |
| 2013/14 | 84 | 0 | 84 | – | – | – | – | – | – | – | – |
| 2012/13 | 105 | 0 | 105 | – | – | – | – | – | – | – | – |
| 2011/12 | 114 | 0 | 114 | – | – | – | – | – | – | – | – |
| 2010/11 | 134 | 0 | 134 | – | – | – | – | – | – | – | – |
| 2009/10 | 142 | 0 | 142 | – | – | – | – | – | – | – | – |
| 2008/09 | 157 | 0 | 157 | – | – | – | – | – | – | – | – |
| 2007/08 | 151 | 0 | 151 | – | – | – | – | – | – | – | – |
| 2006/07 | 165 | 0 | 165 | – | – | – | – | – | – | – | – |
| 2005/06 | 140 | 0 | 140 | – | – | – | – | – | – | – | – |
| 2004/05 | 131 | 0 | 131 | – | – | – | – | – | – | – | – |
| 2003/04 | 133 | 0 | 133 | – | – | – | – | – | – | – | – |
| 2002/03 | 140 | 0 | 140 | – | – | – | – | – | – | – | – |
| 2001/02 | 138 | 0 | 138 | – | – | – | – | – | – | – | – |
| 2000/01 | 137 | 0 | 137 | – | – | – | – | – | – | – | – |
| 1999/00 | 161 | 0 | 161 | – | – | – | – | – | – | – | – |
| 1998/99 | 169 | 0 | 169 | – | – | – | – | – | – | – | – |
| 1997/98 | 173 | – | 173 | – | – | – | – | – | – | – | – |
| 1996/97 | 191 | – | 191 | – | – | – | – | – | – | – | – |
| 1995/96 | 203 | – | 203 | – | – | – | – | – | – | – | – |
| 1994/95 | 219 | – | 219 | – | – | – | – | – | – | – | – |
| 1993/94 | 232 | – | 232 | – | – | – | – | – | – | – | – |
| 1983/84 | 430 | 0 | 430 | – | – | – | – | – | – | – | – |
| 1982/83 | 461 | 0 | 461 | – | – | – | – | – | – | – | – |
| 1981/82 | 504 | 0 | 504 | – | – | – | – | – | – | – | – |
| 1980/81 | 534 | 0 | 534 | – | – | – | – | – | – | – | – |
| 1979/80 | 585 | 0 | 585 | – | – | – | – | – | – | – | – |
| 1978/79 | 619 | 0 | 619 | – | – | – | – | – | – | – | – |
| 1977/78 | 630 | 0 | 630 | – | – | – | – | – | – | – | – |
| 1976/77 | 623 | 0 | 623 | – | – | – | – | – | – | – | – |
| 1975/76 | 592 | – | – | – | – | – | – | – | – | – | – |
| 1974/75 | 511 | 0 | 511 | – | – | – | – | – | – | – | – |