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
22.62
2025/26
Mainstream classes
8
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
2
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
147
6
24.50
31
2
2007/08
158
6
26.33
32
1
2008/09
173
6
28.83
36
2
2009/10
193
7
27.57
33
1
2010/11
205
7
29.29
34
3
2011/12
218
8
27.25
33
2
2012/13
227
8
28.38
31
2
2013/14
221
8
27.62
30
2
2014/15
223
8
27.88
32
3
2015/16
214
8
26.75
31
1
2016/17
219
8
27.38
33
2
2017/18
205
8
25.62
29
0
2019/20
201
8
25.12
30
1
2020/21
186
8
23.25
28
0
2021/22
186
8
23.25
30
1
2022/23
191
8
23.88
29
0
2023/24
205
8
25.62
30
2
2024/25
198
8
24.75
30
1
2025/26
181
8
22.62
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 106 in 2004/05 → 146, +40 pupils.
Biggest loss in a single year: 1993/94: 95 in 1983/84 → 68, -27 pupils.
Largest single-class increase: 2nd Class in 2022/23 (22 → 28, +6).
Largest single-class decrease: 3rd Class in 2025/26 (29 → 19, -10).
Largest cohort-step gain: 5th → 6th in 2022/23 (23 → 29, +6).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (21 → 19, -2).
Overall: 59 (1974/75) → 187 (2025/26), 128.
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
14
23
19.3
6
Senior Infants
20
29
22.7
6
1st Class
20
27
22.3
6
2nd Class
20
28
23.7
6
3rd Class
19
31
25.3
6
4th Class
21
30
26.8
6
5th Class
23
30
28.2
6
6th Class
26
30
28.8
6
Total
52
227
136.8
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).