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
22.88
2025/26
Mainstream classes
16
2025/26
Largest class group
25
2025/26
Classes with 30+ pupils
0
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
363
13
27.92
32
5
2007/08
390
14
27.86
33
6
2008/09
422
15
28.13
32
5
2009/10
424
15
28.27
32
4
2010/11
411
16
25.69
28
0
2011/12
405
15
27.00
33
3
2012/13
405
15
27.00
34
3
2013/14
413
15
27.53
34
3
2014/15
401
15
26.73
34
3
2015/16
400
16
25.00
30
2
2016/17
381
16
23.81
30
1
2017/18
391
16
24.44
31
2
2019/20
365
16
22.81
30
1
2020/21
372
16
23.25
30
1
2021/22
364
16
22.75
26
0
2022/23
383
16
23.94
28
0
2023/24
379
16
23.69
27
0
2024/25
373
16
23.31
26
0
2025/26
366
16
22.88
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 248 in 1983/84 → 339, +91 pupils.
Biggest loss in a single year: 1997/98: 347 in 1996/97 → 322, -25 pupils.
Largest single-class increase: 6th Class in 2022/23 (37 → 53, +16).
Largest single-class decrease: 6th Class in 2021/22 (59 → 37, -22).
Largest cohort-step gain: 3rd → 4th in 2022/23 (47 → 54, +7).
Largest cohort-step loss: 4th → 5th in 2023/24 (54 → 51, -3).
Overall: 122 (1975/76) → 366 (2025/26), 244.
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
34
47
41.3
6
Senior Infants
37
49
44.8
6
1st Class
40
50
44.8
6
2nd Class
42
52
45.8
6
3rd Class
44
51
47.7
6
4th Class
44
54
50.0
6
5th Class
37
52
48.2
6
6th Class
37
59
50.2
6
Total
122
424
333.0
42
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).