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
26.38
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
179
6
29.83
31
3
2007/08
193
7
27.57
31
1
2008/09
199
7
28.43
32
2
2009/10
205
7
29.29
33
3
2010/11
205
8
25.62
32
1
2011/12
198
8
24.75
27
0
2012/13
206
7
29.43
34
3
2013/14
219
8
27.38
34
3
2014/15
225
8
28.12
34
3
2015/16
235
8
29.38
33
3
2016/17
236
9
26.22
33
2
2017/18
244
9
27.11
34
3
2019/20
255
10
25.50
35
3
2020/21
247
10
24.70
33
3
2021/22
241
10
24.10
34
3
2022/23
228
10
22.80
32
3
2023/24
218
9
24.22
31
1
2024/25
211
9
23.44
29
0
2025/26
211
8
26.38
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 48 in 1974/75 → 154, +106 pupils.
Biggest loss in a single year: 2022/23: 241 in 2021/22 → 228, -13 pupils.
Largest single-class increase: 6th Class in 2025/26 (26 → 38, +12).
Largest single-class decrease: 1st Class in 2022/23 (32 → 20, -12).
Largest cohort-step gain: 4th → 5th in 2022/23 (27 → 30, +3).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (21 → 19, -2).
Overall: 48 (1974/75) → 217 (2025/26), 169.
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
20
30
25.0
6
Senior Infants
21
31
25.2
6
1st Class
20
39
27.0
6
2nd Class
21
37
27.7
6
3rd Class
19
37
28.7
6
4th Class
20
37
29.2
6
5th Class
28
39
31.7
6
6th Class
26
39
32.7
6
Total
48
255
175.8
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).