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
23.90
2025/26
Mainstream classes
10
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
4
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
211
8
26.38
32
1
2007/08
214
8
26.75
31
1
2008/09
220
8
27.50
32
1
2009/10
222
8
27.75
30
3
2010/11
218
8
27.25
30
1
2011/12
243
8
30.38
32
5
2012/13
242
8
30.25
32
6
2013/14
243
8
30.38
32
5
2014/15
243
8
30.38
33
5
2015/16
243
8
30.38
32
6
2016/17
235
8
29.38
32
4
2017/18
234
9
26.00
32
4
2019/20
230
9
25.56
32
3
2020/21
235
9
26.11
32
4
2021/22
238
9
26.44
32
4
2022/23
244
9
27.11
32
5
2023/24
240
9
26.67
33
5
2024/25
239
10
23.90
32
4
2025/26
239
10
23.90
32
4
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2002/03: 162 in 2001/02 → 192, +30 pupils.
Biggest loss in a single year: 1993/94: 152 in 1983/84 → 135, -17 pupils.
Largest single-class increase: 5th Class in 2021/22 (25 → 32, +7).
Largest single-class decrease: 3rd Class in 2023/24 (32 → 25, -7).
Largest cohort-step gain: JI → SI in 2021/22 (28 → 30, +2).
Largest cohort-step loss: 1st → 2nd in 2023/24 (30 → 28, -2).
Overall: 64 (1974/75) → 239 (2025/26), 175.
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
28
32
30.2
6
Senior Infants
28
33
30.3
6
1st Class
27
32
30.8
6
2nd Class
26
32
29.8
6
3rd Class
25
32
29.5
6
4th Class
25
32
29.3
6
5th Class
25
32
29.2
6
6th Class
25
32
30.0
6
Total
64
244
185.2
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).