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
23.88
2025/26
Mainstream classes
8
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
185
7
26.43
30
3
2007/08
179
7
25.57
30
1
2008/09
181
7
25.86
31
2
2009/10
188
7
26.86
33
3
2010/11
173
7
24.71
35
2
2011/12
180
7
25.71
32
1
2012/13
184
7
26.29
33
1
2013/14
179
7
25.57
32
2
2014/15
173
7
24.71
32
1
2015/16
176
7
25.14
31
1
2016/17
185
7
26.43
32
2
2017/18
171
7
24.43
29
0
2019/20
170
7
24.29
34
2
2020/21
171
7
24.43
30
1
2021/22
177
7
25.29
29
0
2022/23
171
7
24.43
30
2
2023/24
172
7
24.57
31
1
2024/25
180
7
25.71
32
1
2025/26
191
8
23.88
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 218 in 1974/75 → 254, +36 pupils.
Biggest loss in a single year: 1993/94: 339 in 1982/83 → 285, -54 pupils.
Largest single-class increase: 3rd Class in 2025/26 (14 → 30, +16).
Largest single-class decrease: 1st Class in 2021/22 (24 → 13, -11).
Largest cohort-step gain: 3rd → 4th in 2025/26 (14 → 21, +7).
Largest cohort-step loss: JI → SI in 2021/22 (16 → 14, -2).
Overall: 218 (1974/75) → 204 (2025/26), -14.
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
16
29
22.7
6
Senior Infants
13
31
20.8
6
1st Class
13
30
21.0
6
2nd Class
14
26
20.3
6
3rd Class
14
30
20.7
6
4th Class
18
30
23.2
6
5th Class
20
29
24.8
6
6th Class
18
30
25.7
6
Total
170
339
218.0
42
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).