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
20.38
2025/26
Mainstream classes
8
2025/26
Largest class group
28
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
47
2
23.50
28
0
2007/08
62
2
31.00
36
1
2008/09
63
3
21.00
27
0
2009/10
61
3
20.33
23
0
2010/11
64
3
21.33
26
0
2011/12
76
3
25.33
29
0
2012/13
84
4
21.00
24
0
2013/14
100
4
25.00
32
1
2014/15
100
4
25.00
29
0
2015/16
108
4
27.00
33
1
2016/17
118
4
29.50
32
2
2017/18
117
5
23.40
31
1
2019/20
130
5
26.00
30
1
2020/21
137
6
22.83
33
2
2021/22
143
6
23.83
35
2
2022/23
215
8
26.88
32
2
2023/24
191
10
19.10
28
0
2024/25
193
9
21.44
29
0
2025/26
163
8
20.38
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 160 in 2021/22 → 239, +79 pupils.
Biggest loss in a single year: 2025/26: 221 in 2024/25 → 190, -31 pupils.
Largest single-class increase: 2nd Class in 2022/23 (17 → 32, +15).
Largest single-class decrease: 6th Class in 2023/24 (32 → 21, -11).
Largest cohort-step gain: 1st → 2nd in 2022/23 (16 → 32, +16).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (32 → 25, -7).
Overall: 22 (1975/76) → 190 (2025/26), 168.
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
23
20.2
6
Senior Infants
12
29
20.0
6
1st Class
16
29
21.7
6
2nd Class
16
32
23.7
6
3rd Class
14
32
23.2
6
4th Class
14
31
23.7
6
5th Class
18
27
22.3
6
6th Class
15
32
23.5
6
Total
6
239
70.1
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).