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
18.38
2025/26
Mainstream classes
8
2025/26
Largest class group
25
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
64
3
21.33
23
0
2007/08
68
3
22.67
27
0
2008/09
87
3
29.00
30
1
2009/10
87
4
21.75
28
0
2010/11
89
4
22.25
28
0
2011/12
101
4
25.25
30
1
2012/13
102
4
25.50
29
0
2013/14
104
4
26.00
29
0
2014/15
117
4
29.25
36
2
2015/16
121
5
24.20
29
0
2016/17
125
5
25.00
28
0
2017/18
131
5
26.20
34
1
2019/20
139
6
23.17
33
2
2020/21
159
8
19.88
24
0
2021/22
164
7
23.43
34
1
2022/23
174
8
21.75
29
0
2023/24
166
8
20.75
29
0
2024/25
143
8
17.88
24
0
2025/26
147
8
18.38
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2020/21: 151 in 2019/20 → 177, +26 pupils.
Biggest loss in a single year: 2024/25: 190 in 2023/24 → 173, -17 pupils.
Largest single-class increase: 5th Class in 2022/23 (19 → 29, +10).
Largest single-class decrease: 3rd Class in 2023/24 (28 → 19, -9).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (21 → 29, +8).
Largest cohort-step loss: SI → 1st in 2021/22 (19 → 14, -5).
Overall: 20 (2002/03) → 177 (2025/26), 157.
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
10
22
16.2
6
Senior Infants
12
23
18.2
6
1st Class
14
21
18.5
6
2nd Class
18
26
21.3
6
3rd Class
19
29
23.3
6
4th Class
18
27
22.3
6
5th Class
15
29
22.0
6
6th Class
15
29
22.3
6
Total
20
198
115.5
24
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).