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
23.38
2025/26
Mainstream classes
16
2025/26
Largest class group
26
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
135
5
27.00
32
2
2007/08
158
6
26.33
30
1
2008/09
186
7
26.57
32
2
2009/10
200
8
25.00
30
1
2010/11
210
8
26.25
31
1
2011/12
218
8
27.25
30
1
2012/13
215
8
26.88
30
1
2013/14
212
8
26.50
30
1
2014/15
208
8
26.00
30
1
2015/16
227
9
25.22
30
2
2016/17
246
10
24.60
30
1
2017/18
276
11
25.09
30
1
2019/20
322
13
24.77
29
0
2020/21
331
15
22.07
27
0
2021/22
349
14
24.93
30
1
2022/23
374
16
23.38
29
0
2023/24
362
16
22.62
27
0
2024/25
347
16
21.69
27
0
2025/26
374
16
23.38
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 66 in 2004/05 → 103, +37 pupils.
Biggest loss in a single year: 2024/25: 374 in 2023/24 → 359, -15 pupils.
Largest single-class increase: 5th Class in 2021/22 (31 → 50, +19).
Largest single-class decrease: Junior Infants in 2023/24 (57 → 39, -18).
Largest cohort-step gain: SI → 1st in 2023/24 (36 → 46, +10).
Largest cohort-step loss: 3rd → 4th in 2023/24 (50 → 45, -5).
Overall: 21 (2002/03) → 386 (2025/26), 365.
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
29
57
41.3
6
Senior Infants
36
54
44.0
6
1st Class
45
52
47.7
6
2nd Class
35
52
46.8
6
3rd Class
35
51
46.2
6
4th Class
33
54
46.0
6
5th Class
31
53
44.3
6
6th Class
30
51
42.0
6
Total
21
386
233.3
24
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).