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
23.38
2025/26
Mainstream classes
24
2025/26
Largest class group
26
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+
2007/08
93
4
23.25
26
0
2008/09
195
9
21.67
26
0
2009/10
243
10
24.30
29
0
2010/11
281
12
23.42
30
1
2011/12
337
13
25.92
29
0
2012/13
402
15
26.80
30
2
2013/14
436
17
25.65
29
0
2014/15
475
19
25.00
29
0
2015/16
500
20
25.00
29
0
2016/17
533
21
25.38
30
1
2017/18
559
22
25.41
30
2
2019/20
596
24
24.83
28
0
2020/21
593
25
23.72
29
0
2021/22
580
24
24.17
28
0
2022/23
568
24
23.67
26
0
2023/24
556
24
23.17
26
0
2024/25
561
24
23.38
27
0
2025/26
561
24
23.38
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 96 in 2007/08 → 203, +107 pupils.
Biggest loss in a single year: 2023/24: 598 in 2022/23 → 584, -14 pupils.
Largest single-class increase: 3rd Class in 2022/23 (64 → 78, +14).
Largest single-class decrease: 1st Class in 2022/23 (77 → 62, -15).
Largest cohort-step gain: 1st → 2nd in 2023/24 (62 → 69, +7).
Largest cohort-step loss: 1st → 2nd in 2022/23 (77 → 73, -4).
Overall: 96 (2007/08) → 589 (2025/26), 493.
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
59
73
66.3
6
Senior Infants
61
76
67.8
6
1st Class
62
80
71.3
6
2nd Class
67
79
72.3
6
3rd Class
64
78
72.8
6
4th Class
69
85
75.7
6
5th Class
68
81
75.5
6
6th Class
69
77
73.2
6
Total
96
626
480.3
19
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).