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
25.81
2025/26
Mainstream classes
16
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
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
309
12
25.75
34
3
2007/08
314
13
24.15
32
3
2008/09
321
14
22.93
31
3
2009/10
330
13
25.38
39
2
2010/11
350
14
25.00
37
1
2011/12
354
14
25.29
40
2
2012/13
368
14
26.29
38
3
2013/14
382
15
25.47
35
1
2014/15
407
16
25.44
33
2
2015/16
419
16
26.19
32
4
2016/17
422
16
26.38
32
5
2017/18
424
16
26.50
33
3
2019/20
450
16
28.12
33
4
2020/21
441
16
27.56
31
4
2021/22
452
16
28.25
32
4
2022/23
436
16
27.25
32
3
2023/24
427
16
26.69
32
2
2024/25
427
16
26.69
32
2
2025/26
413
16
25.81
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1996/97: 221 in 1995/96 → 251, +30 pupils.
Biggest loss in a single year: 2001/02: 285 in 2000/01 → 268, -17 pupils.
Largest single-class increase: Senior Infants in 2025/26 (40 → 60, +20).
Largest single-class decrease: Senior Infants in 2024/25 (60 → 40, -20).
Largest cohort-step gain: JI → SI in 2023/24 (57 → 60, +3).
Largest cohort-step loss: 1st → 2nd in 2022/23 (54 → 50, -4).
Overall: 203 (1993/94) → 424 (2025/26), 221.
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
40
63
52.0
6
Senior Infants
40
63
54.8
6
1st Class
41
62
54.8
6
2nd Class
50
62
56.5
6
3rd Class
51
62
55.3
6
4th Class
51
60
54.3
6
5th Class
49
59
54.7
6
6th Class
51
59
54.8
6
Total
203
452
343.6
33
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).