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
24.14
2025/26
Mainstream classes
7
2025/26
Largest class group
33
2025/26
Classes with 30+ pupils
1
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
101
4
25.25
28
0
2007/08
111
4
27.75
33
2
2008/09
135
5
27.00
33
3
2009/10
139
5
27.80
31
3
2010/11
133
5
26.60
32
1
2011/12
129
5
25.80
29
0
2012/13
142
5
28.40
33
3
2013/14
156
6
26.00
33
1
2014/15
159
6
26.50
29
0
2015/16
162
6
27.00
29
0
2016/17
162
6
27.00
29
0
2017/18
166
6
27.67
34
2
2019/20
196
7
28.00
35
3
2020/21
193
8
24.12
33
1
2021/22
193
8
24.12
32
1
2022/23
169
8
21.12
29
0
2023/24
173
7
24.71
30
1
2024/25
173
7
24.71
29
0
2025/26
169
7
24.14
33
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 111 in 2007/08 → 135, +24 pupils.
Biggest loss in a single year: 2022/23: 204 in 2021/22 → 185, -19 pupils.
Largest single-class increase: 1st Class in 2025/26 (14 → 29, +15).
Largest single-class decrease: 1st Class in 2021/22 (33 → 25, -8).
Largest cohort-step gain: 1st → 2nd in 2025/26 (14 → 20, +6).
Largest cohort-step loss: JI → SI in 2022/23 (21 → 18, -3).
Overall: 51 (1974/75) → 187 (2025/26), 136.
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
15
29
20.5
6
Senior Infants
14
28
20.8
6
1st Class
14
33
22.8
6
2nd Class
18
32
22.0
6
3rd Class
19
29
22.3
6
4th Class
20
30
24.2
6
5th Class
20
29
25.0
6
6th Class
19
31
23.7
6
Total
45
206
110.9
43
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).