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
23.31
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
196
8
24.50
31
1
2007/08
205
8
25.62
31
1
2008/09
205
8
25.62
30
2
2009/10
214
8
26.75
32
2
2010/11
239
9
26.56
32
3
2011/12
244
9
27.11
32
2
2012/13
269
10
26.90
36
4
2013/14
296
11
26.91
33
3
2014/15
321
12
26.75
33
3
2015/16
335
13
25.77
33
1
2016/17
364
14
26.00
33
3
2017/18
376
15
25.07
31
1
2019/20
394
15
26.27
33
3
2020/21
385
17
22.65
29
0
2021/22
391
16
24.44
29
0
2022/23
390
16
24.38
29
0
2023/24
386
16
24.12
28
0
2024/25
376
16
23.50
27
0
2025/26
373
16
23.31
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 335 in 2015/16 → 364, +29 pupils.
Biggest loss in a single year: 2024/25: 386 in 2023/24 → 376, -10 pupils.
Largest single-class increase: Junior Infants in 2021/22 (41 → 55, +14).
Largest single-class decrease: 3rd Class in 2021/22 (56 → 41, -15).
Largest cohort-step gain: SI → 1st in 2022/23 (43 → 46, +3).
Largest cohort-step loss: SI → 1st in 2023/24 (53 → 50, -3).
Overall: 183 (1993/94) → 373 (2025/26), 190.
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
41
55
46.2
6
Senior Infants
43
53
47.2
6
1st Class
43
52
47.8
6
2nd Class
42
50
47.2
6
3rd Class
41
56
48.7
6
4th Class
42
56
48.7
6
5th Class
43
56
49.5
6
6th Class
41
54
48.3
6
Total
166
394
261.3
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).