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
25.75
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
246
9
27.33
32
2
2007/08
250
9
27.78
33
3
2008/09
237
9
26.33
32
3
2009/10
245
9
27.22
32
2
2010/11
252
9
28.00
33
5
2011/12
265
9
29.44
34
7
2012/13
299
11
27.18
33
5
2013/14
325
12
27.08
34
6
2014/15
348
12
29.00
34
8
2015/16
375
13
28.85
34
8
2016/17
388
14
27.71
35
7
2017/18
398
15
26.53
35
6
2019/20
428
16
26.75
31
5
2020/21
421
16
26.31
31
4
2021/22
426
16
26.62
31
4
2022/23
416
16
26.00
31
3
2023/24
410
16
25.62
31
2
2024/25
409
16
25.56
32
2
2025/26
412
16
25.75
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 265 in 2011/12 → 299, +34 pupils.
Biggest loss in a single year: 2008/09: 250 in 2007/08 → 237, -13 pupils.
Largest single-class increase: Junior Infants in 2025/26 (38 → 56, +18).
Largest single-class decrease: 4th Class in 2021/22 (59 → 42, -17).
Largest cohort-step gain: 3rd → 4th in 2023/24 (48 → 51, +3).
Largest cohort-step loss: 3rd → 4th in 2025/26 (55 → 52, -3).
Overall: 187 (1993/94) → 412 (2025/26), 225.
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
38
57
50.2
6
Senior Infants
38
61
51.2
6
1st Class
45
61
53.2
6
2nd Class
47
62
53.3
6
3rd Class
44
62
51.7
6
4th Class
42
63
52.2
6
5th Class
41
63
53.5
6
6th Class
41
59
50.5
6
Total
155
428
284.2
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).