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
23.50
2025/26
Mainstream classes
10
2025/26
Largest class group
33
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+
2007/08
189
8
23.62
30
1
2008/09
207
8
25.88
33
1
2009/10
207
8
25.88
32
1
2010/11
211
8
26.38
31
2
2011/12
207
8
25.88
31
2
2012/13
210
8
26.25
32
3
2013/14
213
8
26.62
33
3
2014/15
212
8
26.50
33
3
2015/16
208
8
26.00
33
2
2016/17
207
8
25.88
30
2
2017/18
218
8
27.25
32
2
2019/20
226
8
28.25
34
2
2020/21
219
8
27.38
34
2
2021/22
200
8
25.00
31
2
2022/23
220
8
27.50
33
3
2023/24
223
9
24.78
34
2
2024/25
240
9
26.67
35
4
2025/26
235
10
23.50
33
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 200 in 2021/22 → 220, +20 pupils.
Biggest loss in a single year: 2021/22: 219 in 2020/21 → 200, -19 pupils.
Largest single-class increase: 2nd Class in 2024/25 (22 → 35, +13).
Largest single-class decrease: 6th Class in 2021/22 (34 → 20, -14).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (24 → 28, +4).
Largest cohort-step loss: SI → 1st in 2021/22 (34 → 30, -4).
Overall: 189 (2007/08) → 235 (2025/26), 46.
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
19
33
26.8
6
Senior Infants
22
34
29.3
6
1st Class
21
34
28.2
6
2nd Class
22
35
28.8
6
3rd Class
23
36
28.5
6
4th Class
24
34
27.0
6
5th Class
21
37
27.5
6
6th Class
20
34
26.7
6
Total
189
240
214.1
19
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).