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
22.14
2025/26
Mainstream classes
7
2025/26
Largest class group
32
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
27
0
2007/08
116
4
29.00
33
2
2008/09
120
5
24.00
28
0
2009/10
119
5
23.80
29
0
2010/11
116
5
23.20
25
0
2011/12
119
5
23.80
27
0
2012/13
135
5
27.00
34
2
2013/14
135
5
27.00
32
1
2014/15
148
5
29.60
33
3
2015/16
151
6
25.17
34
2
2016/17
160
6
26.67
32
3
2017/18
166
6
27.67
33
3
2019/20
171
7
24.43
31
2
2020/21
162
7
23.14
30
1
2021/22
174
8
21.75
30
1
2022/23
174
7
24.86
31
2
2023/24
163
7
23.29
33
2
2024/25
159
7
22.71
30
2
2025/26
155
7
22.14
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 119 in 2011/12 → 135, +16 pupils.
Biggest loss in a single year: 1993/94: 122 in 1982/83 → 101, -21 pupils.
Largest single-class increase: Senior Infants in 2022/23 (16 → 27, +11).
Largest single-class decrease: Senior Infants in 2023/24 (27 → 19, -8).
Largest cohort-step gain: 5th → 6th in 2025/26 (22 → 26, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (27 → 26, -1).
Overall: 84 (1975/76) → 167 (2025/26), 83.
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
25
18.8
6
Senior Infants
15
27
19.3
6
1st Class
16
26
20.3
6
2nd Class
16
26
21.5
6
3rd Class
16
26
21.2
6
4th Class
17
24
21.7
6
5th Class
21
24
22.7
6
6th Class
16
26
22.2
6
Total
84
184
123.8
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).