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
24.86
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
91
4
22.75
25
0
2007/08
101
4
25.25
33
1
2008/09
113
4
28.25
30
2
2009/10
127
4
31.75
34
4
2010/11
136
5
27.20
33
1
2011/12
151
5
30.20
34
3
2012/13
164
6
27.33
31
2
2013/14
174
6
29.00
34
3
2014/15
175
7
25.00
27
0
2015/16
187
7
26.71
31
1
2016/17
203
7
29.00
34
4
2017/18
212
8
26.50
35
2
2019/20
216
8
27.00
34
3
2020/21
206
8
25.75
33
2
2021/22
208
8
26.00
33
2
2022/23
198
8
24.75
33
2
2023/24
195
8
24.38
32
2
2024/25
187
8
23.38
32
1
2025/26
174
7
24.86
33
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 98 in 1983/84 → 122, +24 pupils.
Biggest loss in a single year: 1999/00: 109 in 1998/99 → 92, -17 pupils.
Largest single-class increase: 5th Class in 2021/22 (22 → 28, +6).
Largest single-class decrease: 3rd Class in 2022/23 (33 → 23, -10).
Largest cohort-step gain: 3rd → 4th in 2023/24 (23 → 26, +3).
Largest cohort-step loss: SI → 1st in 2022/23 (20 → 18, -2).
Overall: 56 (1974/75) → 174 (2025/26), 118.
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
23
20.3
6
Senior Infants
20
23
22.0
6
1st Class
18
24
22.2
6
2nd Class
18
33
23.8
6
3rd Class
18
33
25.5
6
4th Class
18
33
27.0
6
5th Class
22
32
26.8
6
6th Class
22
32
27.0
6
Total
56
217
129.1
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).