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
27.78
2025/26
Mainstream classes
9
2025/26
Largest class group
31
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
208
8
26.00
31
1
2007/08
211
8
26.38
31
1
2008/09
213
8
26.62
30
1
2009/10
214
8
26.75
29
0
2010/11
212
8
26.50
28
0
2011/12
213
8
26.62
29
0
2012/13
218
8
27.25
30
1
2013/14
213
8
26.62
29
0
2014/15
217
8
27.12
31
2
2015/16
223
8
27.88
31
3
2016/17
224
8
28.00
31
3
2017/18
222
8
27.75
30
3
2019/20
226
9
25.11
31
1
2020/21
244
10
24.40
30
1
2021/22
242
9
26.89
32
1
2022/23
252
9
28.00
29
0
2023/24
252
9
28.00
29
0
2024/25
254
9
28.22
30
2
2025/26
250
9
27.78
31
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1994/95: 116 in 1993/94 → 144, +28 pupils.
Biggest loss in a single year: 1981/82: 126 in 1980/81 → 100, -26 pupils.
Largest single-class increase: 2nd Class in 2023/24 (28 → 56, +28).
Largest single-class decrease: 2nd Class in 2024/25 (56 → 29, -27).
Largest cohort-step gain: SI → 1st in 2022/23 (49 → 54, +5).
Largest cohort-step loss: JI → SI in 2022/23 (32 → 29, -3).
Overall: 175 (1975/76) → 250 (2025/26), 75.
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
27
47
32.0
6
Senior Infants
27
49
31.8
6
1st Class
26
54
32.5
6
2nd Class
26
56
33.2
6
3rd Class
28
55
33.2
6
4th Class
28
53
32.7
6
5th Class
25
30
27.2
6
6th Class
22
30
26.5
6
Total
100
254
191.6
40
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).