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
17.93
2025/26
Mainstream classes
14
2025/26
Largest class group
22
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
150
7
21.43
24
0
2007/08
147
7
21.00
23
0
2008/09
152
7
21.71
25
0
2009/10
153
7
21.86
26
0
2010/11
159
7
22.71
30
1
2011/12
177
8
22.12
29
0
2012/13
201
9
22.33
26
0
2013/14
214
10
21.40
25
0
2014/15
212
11
19.27
22
0
2015/16
214
11
19.45
23
0
2016/17
218
11
19.82
23
0
2017/18
236
11
21.45
24
0
2019/20
238
12
19.83
24
0
2020/21
233
12
19.42
24
0
2021/22
240
12
20.00
23
0
2022/23
235
12
19.58
26
0
2023/24
251
13
19.31
24
0
2024/25
262
14
18.71
21
0
2025/26
251
14
17.93
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 191 in 1982/83 → 295, +104 pupils.
Biggest loss in a single year: 1996/97: 245 in 1995/96 → 200, -45 pupils.
Largest single-class increase: 3rd Class in 2024/25 (36 → 52, +16).
Largest single-class decrease: 5th Class in 2025/26 (57 → 39, -18).
Largest cohort-step gain: 1st → 2nd in 2024/25 (0 → 52, +52).
Largest cohort-step loss: JI → SI in 2023/24 (6 → 0, -6).
Overall: 183 (1975/76) → 265 (2025/26), 82.
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
3
6
4.4
5
Senior Infants
1
6
3.8
4
1st Class
1
4
2.2
4
2nd Class
34
52
44.0
6
3rd Class
36
56
47.0
6
4th Class
41
54
49.0
6
5th Class
39
58
50.8
6
6th Class
47
63
56.3
6
Total
147
295
209.6
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).