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
20.82
2025/26
Mainstream classes
11
2025/26
Largest class group
29
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
135
8
16.88
22
0
2007/08
140
8
17.50
21
0
2008/09
121
8
15.12
19
0
2009/10
117
7
16.71
26
0
2010/11
116
7
16.57
23
0
2011/12
127
6
21.17
33
1
2012/13
133
6
22.17
34
1
2013/14
134
7
19.14
26
0
2014/15
157
8
19.62
28
0
2015/16
161
8
20.12
25
0
2016/17
179
9
19.89
26
0
2017/18
181
9
20.11
26
0
2019/20
200
9
22.22
28
0
2020/21
199
10
19.90
27
0
2021/22
208
10
20.80
32
1
2022/23
212
10
21.20
31
1
2023/24
212
11
19.27
27
0
2024/25
213
11
19.36
28
0
2025/26
229
11
20.82
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 134 in 2013/14 → 157, +23 pupils.
Biggest loss in a single year: 2004/05: 156 in 2003/04 → 137, -19 pupils.
Largest single-class increase: 2nd Class in 2024/25 (29 → 42, +13).
Largest single-class decrease: 1st Class in 2024/25 (41 → 24, -17).
Largest cohort-step gain: SI → 1st in 2023/24 (35 → 41, +6).
Largest cohort-step loss: JI → SI in 2021/22 (32 → 30, -2).
Overall: 231 (1993/94) → 229 (2025/26), -2.
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
14
34
24.2
6
Senior Infants
16
35
26.2
6
1st Class
18
41
28.7
6
2nd Class
19
42
29.2
6
3rd Class
18
43
29.0
6
4th Class
19
36
27.2
6
5th Class
18
37
24.8
6
6th Class
17
29
23.0
6
Total
116
231
176.2
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).