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
22.52
2025/26
Mainstream classes
23
2025/26
Largest class group
27
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
741
25
29.64
32
16
2007/08
727
25
29.08
31
7
2008/09
747
25
29.88
32
18
2009/10
751
25
30.04
33
15
2010/11
782
26
30.08
34
17
2011/12
796
26
30.62
34
20
2012/13
784
26
30.15
34
17
2013/14
777
26
29.88
33
17
2014/15
747
26
28.73
33
11
2015/16
731
26
28.12
32
11
2016/17
725
26
27.88
32
10
2017/18
706
26
27.15
31
8
2019/20
659
26
25.35
31
4
2020/21
643
25
25.72
31
3
2021/22
606
25
24.24
30
1
2022/23
595
25
23.80
29
0
2023/24
555
25
22.20
27
0
2024/25
542
24
22.58
27
0
2025/26
518
23
22.52
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 140 in 1983/84 → 899, +759 pupils.
Biggest loss in a single year: 2023/24: 601 in 2022/23 → 562, -39 pupils.
Largest single-class increase: Senior Infants in 2025/26 (49 → 66, +17).
Largest single-class decrease: Junior Infants in 2023/24 (73 → 47, -26).
Largest cohort-step gain: JI → SI in 2025/26 (61 → 66, +5).
Largest cohort-step loss: 1st → 2nd in 2021/22 (82 → 76, -6).
Overall: 52 (1981/82) → 530 (2025/26), 478.
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
47
73
62.3
6
Senior Infants
49
80
67.5
6
1st Class
47
82
69.2
6
2nd Class
69
78
74.0
6
3rd Class
67
77
73.2
6
4th Class
67
88
75.7
6
5th Class
72
86
77.5
6
6th Class
73
90
79.8
6
Total
52
899
687.1
36
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).