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
22.69
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+
2006/07
172
7
24.57
29
0
2007/08
182
7
26.00
29
0
2008/09
207
8
25.88
30
1
2009/10
209
8
26.12
30
2
2010/11
205
8
25.62
30
1
2011/12
209
8
26.12
31
2
2012/13
216
8
27.00
32
2
2013/14
249
9
27.67
32
3
2014/15
258
9
28.67
32
6
2015/16
297
11
27.00
32
5
2016/17
307
11
27.91
32
7
2017/18
321
12
26.75
31
4
2019/20
356
14
25.43
30
2
2020/21
369
14
26.36
30
1
2021/22
355
15
23.67
28
0
2022/23
386
16
24.12
30
1
2023/24
374
16
23.38
29
0
2024/25
376
16
23.50
29
0
2025/26
363
16
22.69
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 258 in 2014/15 → 297, +39 pupils.
Biggest loss in a single year: 2021/22: 369 in 2020/21 → 355, -14 pupils.
Largest single-class increase: 6th Class in 2022/23 (27 → 54, +27).
Largest single-class decrease: 6th Class in 2021/22 (58 → 27, -31).
Largest cohort-step gain: SI → 1st in 2022/23 (44 → 47, +3).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (52 → 48, -4).
Overall: 14 (1998/99) → 369 (2025/26), 355.
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
44
49
45.8
6
Senior Infants
44
58
48.3
6
1st Class
41
54
47.3
6
2nd Class
41
57
48.3
6
3rd Class
40
54
46.3
6
4th Class
41
55
47.7
6
5th Class
27
53
43.5
6
6th Class
27
58
44.2
6
Total
14
386
231.6
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).