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
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
15
2
7.50
11
0
2009/10
62
3
20.67
30
1
2010/11
148
6
24.67
28
0
2011/12
200
9
22.22
30
1
2012/13
254
9
28.22
35
4
2013/14
295
11
26.82
31
2
2014/15
346
13
26.62
32
3
2015/16
394
14
28.14
32
8
2016/17
427
15
28.47
32
8
2017/18
449
16
28.06
31
6
2019/20
437
16
27.31
31
3
2020/21
442
16
27.62
30
1
2021/22
434
16
27.12
30
1
2022/23
419
16
26.19
28
0
2023/24
418
16
26.12
29
0
2024/25
409
16
25.56
27
0
2025/26
413
16
25.81
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 62 in 2009/10 → 148, +86 pupils.
Biggest loss in a single year: 2022/23: 434 in 2021/22 → 419, -15 pupils.
Largest single-class increase: 6th Class in 2023/24 (55 → 58, +3).
Largest single-class decrease: 6th Class in 2024/25 (58 → 51, -7).
Largest cohort-step gain: 5th → 6th in 2023/24 (53 → 58, +5).
Largest cohort-step loss: SI → 1st in 2022/23 (54 → 51, -3).
Overall: 15 (2008/09) → 413 (2025/26), 398.
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
50
54
52.2
6
Senior Infants
50
54
52.5
6
1st Class
51
54
52.2
6
2nd Class
51
54
52.5
6
3rd Class
51
55
52.7
6
4th Class
49
58
52.5
6
5th Class
50
58
53.5
6
6th Class
50
58
54.5
6
Total
15
449
333.6
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).