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
18.48
2025/26
Mainstream classes
31
2025/26
Largest class group
23
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
322
15
21.47
31
1
2007/08
341
16
21.31
29
0
2008/09
332
16
20.75
28
0
2009/10
335
16
20.94
26
0
2010/11
324
16
20.25
27
0
2011/12
405
16
25.31
29
0
2012/13
387
16
24.19
29
0
2013/14
396
16
24.75
29
0
2014/15
411
16
25.69
30
3
2015/16
430
16
26.88
32
1
2016/17
425
16
26.56
30
1
2017/18
434
16
27.12
30
3
2019/20
439
17
25.82
31
5
2020/21
446
18
24.78
32
2
2021/22
453
17
26.65
30
2
2022/23
552
26
21.23
27
0
2023/24
574
29
19.79
24
0
2024/25
586
30
19.53
22
0
2025/26
573
31
18.48
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 453 in 2021/22 → 552, +99 pupils.
Biggest loss in a single year: 1999/00: 434 in 1998/99 → 391, -43 pupils.
Largest single-class increase: 5th Class in 2021/22 (46 → 74, +28).
Largest single-class decrease: 6th Class in 2025/26 (81 → 61, -20).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (47 → 65, +18).
Largest cohort-step loss: 3rd → 4th in 2023/24 (65 → 58, -7).
Overall: 434 (1998/99) → 573 (2025/26), 139.
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
47
76
60.3
6
Senior Infants
50
83
66.2
6
1st Class
46
81
65.8
6
2nd Class
47
85
68.3
6
3rd Class
59
83
69.8
6
4th Class
57
81
68.2
6
5th Class
46
75
65.5
6
6th Class
49
81
66.5
6
Total
374
586
430.6
28
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).