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
23.60
2025/26
Mainstream classes
10
2025/26
Largest class group
28
2025/26
Classes with 30+ pupils
0
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
208
8
26.00
31
2
2007/08
213
8
26.62
31
2
2008/09
219
8
27.38
32
2
2009/10
228
8
28.50
33
2
2010/11
238
8
29.75
32
4
2011/12
250
8
31.25
40
6
2012/13
241
9
26.78
33
4
2013/14
241
9
26.78
33
3
2014/15
266
10
26.60
35
3
2015/16
259
10
25.90
33
3
2016/17
259
10
25.90
33
3
2017/18
265
10
26.50
34
3
2019/20
254
10
25.40
34
2
2020/21
258
10
25.80
33
3
2021/22
249
10
24.90
32
2
2022/23
236
10
23.60
31
1
2023/24
237
10
23.70
30
1
2024/25
235
10
23.50
28
0
2025/26
236
10
23.60
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1981/82: 98 in 1980/81 → 126, +28 pupils.
Biggest loss in a single year: 2019/20: 272 in 2018/19 → 254, -18 pupils.
Largest single-class increase: 3rd Class in 2024/25 (26 → 41, +15).
Largest single-class decrease: 5th Class in 2021/22 (49 → 32, -17).
Largest cohort-step gain: 2nd → 3rd in 2024/25 (36 → 41, +5).
Largest cohort-step loss: 1st → 2nd in 2025/26 (33 → 31, -2).
Overall: 58 (1974/75) → 236 (2025/26), 178.
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
33
28.7
6
Senior Infants
26
34
29.3
6
1st Class
25
35
29.8
6
2nd Class
25
36
29.2
6
3rd Class
26
41
29.8
6
4th Class
26
40
30.3
6
5th Class
27
49
32.0
6
6th Class
26
47
32.7
6
Total
58
272
187.7
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).