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
23.88
2025/26
Mainstream classes
8
2025/26
Largest class group
29
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
197
7
28.14
33
4
2007/08
199
7
28.43
36
4
2008/09
205
7
29.29
34
4
2009/10
209
7
29.86
32
5
2010/11
205
8
25.62
31
2
2011/12
205
8
25.62
31
2
2012/13
199
8
24.88
30
1
2013/14
206
7
29.43
38
4
2014/15
192
8
24.00
30
1
2015/16
208
7
29.71
36
2
2016/17
208
8
26.00
31
2
2017/18
219
8
27.38
32
3
2019/20
207
8
25.88
31
1
2020/21
211
8
26.38
31
1
2021/22
208
8
26.00
31
1
2022/23
203
8
25.38
31
1
2023/24
201
8
25.12
30
1
2024/25
198
8
24.75
30
1
2025/26
191
8
23.88
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2002/03: 129 in 2001/02 → 154, +25 pupils.
Biggest loss in a single year: 1993/94: 119 in 1983/84 → 96, -23 pupils.
Largest single-class increase: 1st Class in 2021/22 (21 → 31, +10).
Largest single-class decrease: 2nd Class in 2021/22 (29 → 21, -8).
Largest cohort-step gain: SI → 1st in 2023/24 (22 → 24, +2).
Largest cohort-step loss: 4th → 5th in 2025/26 (30 → 28, -2).
Overall: 80 (1974/75) → 191 (2025/26), 111.
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
20
29
23.3
6
Senior Infants
22
31
25.2
6
1st Class
21
31
25.2
6
2nd Class
21
31
26.2
6
3rd Class
21
30
26.0
6
4th Class
21
30
26.5
6
5th Class
21
28
25.0
6
6th Class
20
28
24.7
6
Total
80
219
155.1
43
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).