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
21.91
2025/26
Mainstream classes
11
2025/26
Largest class group
31
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
213
8
26.62
34
3
2007/08
215
8
26.88
36
2
2008/09
232
8
29.00
33
2
2009/10
236
8
29.50
36
3
2010/11
248
9
27.56
34
3
2011/12
234
9
26.00
30
1
2012/13
249
9
27.67
32
3
2013/14
271
10
27.10
35
3
2014/15
281
10
28.10
31
4
2015/16
273
11
24.82
31
1
2016/17
257
11
23.36
29
0
2017/18
246
10
24.60
33
3
2019/20
249
10
24.90
31
2
2020/21
257
10
25.70
32
2
2021/22
249
10
24.90
31
2
2022/23
241
10
24.10
28
0
2023/24
244
10
24.40
31
1
2024/25
255
10
25.50
32
2
2025/26
241
11
21.91
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 256 in 2012/13 → 281, +25 pupils.
Biggest loss in a single year: 1993/94: 409 in 1982/83 → 359, -50 pupils.
Largest single-class increase: Senior Infants in 2021/22 (42 → 54, +12).
Largest single-class decrease: 1st Class in 2023/24 (54 → 43, -11).
Largest cohort-step gain: SI → 1st in 2025/26 (49 → 54, +5).
Largest cohort-step loss: 1st → 2nd in 2025/26 (49 → 22, -27).
Overall: 414 (1975/76) → 253 (2025/26), -161.
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
34
52
45.5
6
Senior Infants
39
54
46.2
6
1st Class
42
54
48.7
6
2nd Class
17
31
23.2
6
3rd Class
15
32
22.0
6
4th Class
15
32
21.8
6
5th Class
13
31
20.8
6
6th Class
13
31
21.8
6
Total
210
414
291.8
41
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).