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
25.20
2025/26
Mainstream classes
10
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
188
7
26.86
29
0
2007/08
188
7
26.86
30
1
2008/09
190
7
27.14
31
1
2009/10
195
7
27.86
33
2
2010/11
195
7
27.86
31
1
2011/12
191
7
27.29
30
2
2012/13
199
7
28.43
31
3
2013/14
209
7
29.86
34
4
2014/15
221
8
27.62
31
1
2015/16
237
8
29.62
31
5
2016/17
235
8
29.38
31
6
2017/18
240
9
26.67
31
4
2019/20
256
9
28.44
34
5
2020/21
247
9
27.44
33
4
2021/22
248
9
27.56
35
4
2022/23
258
10
25.80
33
3
2023/24
258
10
25.80
31
2
2024/25
255
10
25.50
31
1
2025/26
252
10
25.20
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2003/04: 179 in 2002/03 → 210, +31 pupils.
Biggest loss in a single year: 1994/95: 215 in 1993/94 → 195, -20 pupils.
Largest single-class increase: 2nd Class in 2022/23 (23 → 39, +16).
Largest single-class decrease: Junior Infants in 2024/25 (42 → 26, -16).
Largest cohort-step gain: JI → SI in 2022/23 (35 → 37, +2).
Largest cohort-step loss: 1st → 2nd in 2021/22 (26 → 23, -3).
Overall: 127 (1974/75) → 252 (2025/26), 125.
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
26
42
32.8
6
Senior Infants
26
41
33.8
6
1st Class
26
39
33.7
6
2nd Class
23
39
31.7
6
3rd Class
24
39
31.0
6
4th Class
22
37
30.0
6
5th Class
23
37
30.3
6
6th Class
22
33
29.7
6
Total
127
258
200.4
42
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).