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
23.12
2025/26
Mainstream classes
8
2025/26
Largest class group
30
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
202
8
25.25
32
1
2007/08
212
8
26.50
31
1
2008/09
214
8
26.75
31
2
2009/10
220
8
27.50
31
2
2010/11
226
8
28.25
30
3
2011/12
228
9
25.33
29
0
2012/13
234
9
26.00
29
0
2013/14
237
9
26.33
31
2
2014/15
232
9
25.78
31
1
2015/16
225
9
25.00
31
1
2016/17
211
9
23.44
29
0
2017/18
212
8
26.50
35
1
2019/20
206
8
25.75
33
2
2020/21
196
8
24.50
33
1
2021/22
193
8
24.12
33
2
2022/23
187
8
23.38
32
2
2023/24
191
8
23.88
31
2
2024/25
200
8
25.00
30
2
2025/26
185
8
23.12
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 88 in 1982/83 → 126, +38 pupils.
Biggest loss in a single year: 2016/17: 232 in 2015/16 → 218, -14 pupils.
Largest single-class increase: 3rd Class in 2021/22 (21 → 33, +12).
Largest single-class decrease: 2nd Class in 2021/22 (33 → 18, -15).
Largest cohort-step gain: SI → 1st in 2024/25 (24 → 28, +4).
Largest cohort-step loss: SI → 1st in 2022/23 (23 → 19, -4).
Overall: 83 (1975/76) → 192 (2025/26), 109.
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
21
25
23.2
6
Senior Infants
22
29
24.7
6
1st Class
19
30
23.8
6
2nd Class
18
33
24.7
6
3rd Class
19
33
24.3
6
4th Class
17
32
23.5
6
5th Class
16
31
24.7
6
6th Class
16
30
24.3
6
Total
71
244
164.6
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).