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
21.35
2025/26
Mainstream classes
17
2025/26
Largest class group
27
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
152
7
21.71
27
0
2007/08
145
7
20.71
27
0
2008/09
140
7
20.00
28
0
2009/10
117
7
16.71
20
0
2010/11
102
6
17.00
24
0
2011/12
98
5
19.60
28
0
2012/13
106
5
21.20
34
1
2013/14
102
5
20.40
23
0
2014/15
119
6
19.83
25
0
2015/16
129
6
21.50
28
0
2016/17
160
7
22.86
29
0
2017/18
193
8
24.12
30
1
2019/20
308
13
23.69
32
2
2020/21
331
14
23.64
30
4
2021/22
346
14
24.71
31
1
2022/23
408
15
27.20
30
3
2023/24
421
16
26.31
30
4
2024/25
385
17
22.65
26
0
2025/26
363
17
21.35
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 200 in 2017/18 → 263, +63 pupils.
Biggest loss in a single year: 2024/25: 427 in 2023/24 → 392, -35 pupils.
Largest single-class increase: 5th Class in 2022/23 (27 → 57, +30).
Largest single-class decrease: Junior Infants in 2023/24 (57 → 37, -20).
Largest cohort-step gain: JI → SI in 2022/23 (44 → 54, +10).
Largest cohort-step loss: 1st → 2nd in 2024/25 (59 → 48, -11).
Overall: 260 (1993/94) → 370 (2025/26), 110.
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
35
57
43.0
6
Senior Infants
40
60
50.3
6
1st Class
43
60
53.7
6
2nd Class
42
60
51.8
6
3rd Class
42
56
48.2
6
4th Class
30
52
45.5
6
5th Class
27
57
43.7
6
6th Class
30
59
40.7
6
Total
105
427
202.8
33
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).