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
25.00
2025/26
Mainstream classes
6
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
2
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
106
4
26.50
32
1
2007/08
116
4
29.00
34
3
2008/09
116
5
23.20
32
1
2009/10
132
5
26.40
34
3
2010/11
129
5
25.80
32
2
2011/12
141
5
28.20
33
3
2012/13
140
5
28.00
32
3
2013/14
142
5
28.40
32
3
2014/15
155
5
31.00
32
5
2015/16
158
6
26.33
32
3
2016/17
181
7
25.86
33
2
2017/18
180
7
25.71
35
2
2019/20
177
7
25.29
34
3
2020/21
183
7
26.14
34
2
2021/22
180
7
25.71
30
2
2022/23
178
7
25.43
32
1
2023/24
167
7
23.86
29
0
2024/25
154
7
22.00
33
1
2025/26
150
6
25.00
31
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 158 in 2015/16 → 181, +23 pupils.
Biggest loss in a single year: 1993/94: 174 in 1982/83 → 112, -62 pupils.
Largest single-class increase: 3rd Class in 2022/23 (17 → 23, +6).
Largest single-class decrease: 3rd Class in 2021/22 (29 → 17, -12).
Largest cohort-step gain: JI → SI in 2024/25 (17 → 19, +2).
Largest cohort-step loss: SI → 1st in 2022/23 (25 → 22, -3).
Overall: 139 (1975/76) → 150 (2025/26), 11.
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
13
26
18.8
6
Senior Infants
14
25
20.5
6
1st Class
17
24
21.3
6
2nd Class
17
24
20.7
6
3rd Class
17
29
21.8
6
4th Class
18
28
21.7
6
5th Class
16
28
21.5
6
6th Class
17
29
22.3
6
Total
89
187
137.1
41
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).