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
23.55
2025/26
Mainstream classes
20
2025/26
Largest class group
28
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
383
14
27.36
33
2
2007/08
400
14
28.57
34
6
2008/09
419
15
27.93
33
3
2009/10
431
15
28.73
36
4
2010/11
435
16
27.19
32
5
2011/12
434
16
27.12
32
2
2012/13
422
16
26.38
31
1
2013/14
422
16
26.38
30
1
2014/15
429
16
26.81
30
2
2015/16
468
17
27.53
29
0
2016/17
470
17
27.65
30
1
2017/18
490
18
27.22
30
3
2019/20
515
20
25.75
29
0
2020/21
504
20
25.20
30
1
2021/22
496
20
24.80
30
1
2022/23
518
20
25.90
31
4
2023/24
490
21
23.33
28
0
2024/25
482
20
24.10
28
0
2025/26
471
20
23.55
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 429 in 2014/15 → 468, +39 pupils.
Biggest loss in a single year: 1993/94: 332 in 1983/84 → 294, -38 pupils.
Largest single-class increase: 6th Class in 2022/23 (53 → 92, +39).
Largest single-class decrease: 6th Class in 2023/24 (92 → 60, -32).
Largest cohort-step gain: JI → SI in 2025/26 (48 → 57, +9).
Largest cohort-step loss: SI → 1st in 2023/24 (55 → 51, -4).
Overall: 331 (1982/83) → 480 (2025/26), 149.
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
43
56
49.8
6
Senior Infants
43
64
54.8
6
1st Class
47
72
58.0
6
2nd Class
51
72
61.0
6
3rd Class
53
74
61.7
6
4th Class
52
86
68.5
6
5th Class
53
88
71.0
6
6th Class
53
92
70.2
6
Total
294
524
408.2
35
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).