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
25.25
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
88
4
22.00
26
0
2009/10
160
6
26.67
29
0
2010/11
228
8
28.50
30
1
2011/12
297
11
27.00
31
5
2012/13
351
14
25.07
32
3
2013/14
411
15
27.40
31
5
2014/15
447
15
29.80
33
8
2015/16
451
16
28.19
32
4
2016/17
441
16
27.56
31
3
2017/18
437
16
27.31
31
1
2019/20
420
16
26.25
30
1
2020/21
426
16
26.62
30
4
2021/22
416
16
26.00
30
2
2022/23
403
16
25.19
30
1
2023/24
410
16
25.62
30
1
2024/25
415
16
25.94
29
0
2025/26
404
16
25.25
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2009/10: 88 in 2008/09 → 160, +72 pupils.
Biggest loss in a single year: 2019/20: 446 in 2018/19 → 432, -14 pupils.
Largest single-class increase: 5th Class in 2022/23 (49 → 56, +7).
Largest single-class decrease: 5th Class in 2021/22 (60 → 49, -11).
Largest cohort-step gain: SI → 1st in 2024/25 (47 → 52, +5).
Largest cohort-step loss: 4th → 5th in 2021/22 (56 → 49, -7).
Overall: 88 (2008/09) → 416 (2025/26), 328.
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
46
52
48.3
6
Senior Infants
43
53
48.5
6
1st Class
48
53
51.3
6
2nd Class
47
56
52.3
6
3rd Class
48
55
53.0
6
4th Class
45
57
52.5
6
5th Class
49
60
53.7
6
6th Class
51
66
56.7
6
Total
88
463
376.8
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).