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
22.72
2025/26
Mainstream classes
18
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+
2006/07
366
18
20.33
25
0
2007/08
373
17
21.94
24
0
2008/09
371
18
20.61
25
0
2009/10
388
18
21.56
29
0
2010/11
399
18
22.17
29
0
2011/12
406
18
22.56
30
1
2012/13
419
18
23.28
30
1
2013/14
456
18
25.33
32
4
2014/15
450
18
25.00
31
3
2015/16
445
18
24.72
35
6
2016/17
436
18
24.22
33
4
2017/18
441
18
24.50
32
4
2019/20
469
18
26.06
32
5
2020/21
458
18
25.44
30
6
2021/22
435
18
24.17
30
2
2022/23
430
18
23.89
29
0
2023/24
418
18
23.22
29
0
2024/25
410
18
22.78
28
0
2025/26
409
18
22.72
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 329 in 2005/06 → 366, +37 pupils.
Biggest loss in a single year: 2021/22: 458 in 2020/21 → 435, -23 pupils.
Largest single-class increase: Senior Infants in 2023/24 (49 → 61, +12).
Largest single-class decrease: 3rd Class in 2025/26 (50 → 37, -13).
Largest cohort-step gain: JI → SI in 2023/24 (56 → 61, +5).
Largest cohort-step loss: SI → 1st in 2023/24 (49 → 42, -7).
Overall: 302 (1999/00) → 409 (2025/26), 107.
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
48
56
53.3
6
Senior Infants
49
61
54.7
6
1st Class
42
57
52.5
6
2nd Class
44
60
52.8
6
3rd Class
37
58
51.2
6
4th Class
48
57
53.5
6
5th Class
50
59
54.5
6
6th Class
49
60
54.2
6
Total
302
469
394.1
27
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).