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
25.38
2025/26
Mainstream classes
16
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+
2008/09
20
2
10.00
11
0
2009/10
54
3
18.00
22
0
2010/11
100
4
25.00
29
0
2011/12
148
6
24.67
34
1
2012/13
179
7
25.57
31
1
2013/14
243
9
27.00
34
3
2014/15
304
11
27.64
32
3
2015/16
340
13
26.15
33
3
2016/17
372
14
26.57
32
2
2017/18
411
16
25.69
30
2
2019/20
454
18
25.22
29
0
2020/21
449
18
24.94
29
0
2021/22
452
18
25.11
28
0
2022/23
455
18
25.28
29
0
2023/24
440
17
25.88
29
0
2024/25
424
17
24.94
29
0
2025/26
406
16
25.38
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 185 in 2012/13 → 255, +70 pupils.
Biggest loss in a single year: 2025/26: 442 in 2024/25 → 424, -18 pupils.
Largest single-class increase: 4th Class in 2022/23 (58 → 64, +6).
Largest single-class decrease: Junior Infants in 2024/25 (56 → 44, -12).
Largest cohort-step gain: 1st → 2nd in 2025/26 (50 → 57, +7).
Largest cohort-step loss: SI → 1st in 2023/24 (58 → 54, -4).
Overall: 20 (2008/09) → 424 (2025/26), 404.
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
44
56
51.7
6
Senior Infants
43
58
52.7
6
1st Class
50
55
53.8
6
2nd Class
52
62
56.0
6
3rd Class
53
61
55.5
6
4th Class
55
64
57.7
6
5th Class
52
62
57.2
6
6th Class
54
59
56.2
6
Total
20
473
328.2
18
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).