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
26.36
2025/26
Mainstream classes
14
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
232
9
25.78
35
3
2007/08
238
9
26.44
33
4
2008/09
237
10
23.70
34
4
2009/10
247
10
24.70
34
4
2010/11
241
9
26.78
35
4
2011/12
243
10
24.30
35
3
2012/13
239
10
23.90
33
1
2013/14
243
10
24.30
32
2
2014/15
232
10
23.20
30
1
2015/16
228
10
22.80
29
0
2016/17
236
9
26.22
33
2
2017/18
236
9
26.22
32
3
2019/20
256
10
25.60
32
2
2020/21
251
10
25.10
32
2
2021/22
276
10
27.60
32
4
2022/23
309
11
28.09
31
3
2023/24
319
13
24.54
31
2
2024/25
343
13
26.38
30
2
2025/26
369
14
26.36
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 276 in 2021/22 → 309, +33 pupils.
Biggest loss in a single year: 2014/15: 243 in 2013/14 → 232, -11 pupils.
Largest single-class increase: 3rd Class in 2025/26 (28 → 54, +26).
Largest single-class decrease: 1st Class in 2022/23 (48 → 29, -19).
Largest cohort-step gain: JI → SI in 2022/23 (55 → 56, +1).
Largest cohort-step loss: SI → 1st in 2023/24 (56 → 53, -3).
Overall: 114 (1993/94) → 369 (2025/26), 255.
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
32
59
51.3
6
Senior Infants
31
59
49.3
6
1st Class
29
56
43.7
6
2nd Class
29
54
41.2
6
3rd Class
27
54
36.2
6
4th Class
27
44
31.5
6
5th Class
24
43
30.5
6
6th Class
22
30
27.5
6
Total
114
369
233.5
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).