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
24.10
2025/26
Mainstream classes
10
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
3
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
247
8
30.88
32
7
2007/08
248
8
31.00
32
7
2008/09
242
8
30.25
32
6
2009/10
247
8
30.88
32
8
2010/11
246
8
30.75
32
8
2011/12
251
8
31.38
33
7
2012/13
248
8
31.00
32
7
2013/14
251
8
31.38
33
7
2014/15
252
8
31.50
33
7
2015/16
256
9
28.44
33
7
2016/17
256
10
25.60
33
6
2017/18
249
10
24.90
32
5
2019/20
252
10
25.20
33
5
2020/21
249
10
24.90
33
5
2021/22
246
10
24.60
32
5
2022/23
248
10
24.80
32
5
2023/24
249
10
24.90
32
4
2024/25
245
10
24.50
32
4
2025/26
241
10
24.10
32
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 178 in 1974/75 → 239, +61 pupils.
Biggest loss in a single year: 1999/00: 262 in 1998/99 → 251, -11 pupils.
Largest single-class increase: 5th Class in 2025/26 (27 → 32, +5).
Largest single-class decrease: 4th Class in 2025/26 (32 → 28, -4).
Largest cohort-step loss: 3rd → 4th in 2025/26 (31 → 28, -3).
Overall: 178 (1974/75) → 241 (2025/26), 63.
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
32
32
32.0
6
Senior Infants
31
32
31.8
6
1st Class
28
32
31.2
6
2nd Class
31
32
31.7
6
3rd Class
31
33
31.7
6
4th Class
27
32
29.7
6
5th Class
27
32
29.3
6
6th Class
26
32
29.0
6
Total
178
270
250.0
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).