Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
24.70
2025/26
Mainstream classes
10
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
2
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
225
8
28.12
31
3
2007/08
223
8
27.88
33
3
2008/09
220
8
27.50
34
4
2009/10
203
8
25.38
31
2
2010/11
211
7
30.14
33
5
2011/12
220
8
27.50
33
1
2012/13
217
8
27.12
31
2
2013/14
219
8
27.38
31
2
2014/15
219
8
27.38
31
2
2015/16
244
9
27.11
32
2
2016/17
246
10
24.60
32
1
2017/18
261
10
26.10
30
2
2019/20
270
10
27.00
31
2
2020/21
265
10
26.50
36
4
2021/22
256
10
25.60
35
3
2022/23
260
10
26.00
33
4
2023/24
247
10
24.70
30
3
2024/25
252
10
25.20
30
3
2025/26
247
10
24.70
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 206 in 1983/84 → 255, +49 pupils.
Biggest loss in a single year: 2004/05: 256 in 2003/04 → 220, -36 pupils.
Largest single-class increase: 3rd Class in 2022/23 (29 → 45, +16).
Largest single-class decrease: 3rd Class in 2023/24 (45 → 26, -19).
Largest cohort-step gain: JI → SI in 2023/24 (26 → 30, +4).
Largest cohort-step loss: 3rd → 4th in 2021/22 (38 → 33, -5).
Overall: 237 (1974/75) → 247 (2025/26), 10.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
21
36
28.3
6
Senior Infants
29
37
31.5
6
1st Class
29
45
32.2
6
2nd Class
28
43
31.7
6
3rd Class
26
45
32.3
6
4th Class
25
42
32.5
6
5th Class
26
43
33.5
6
6th Class
24
46
32.5
6
Total
151
285
232.3
43
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).