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
21.83
2025/26
Mainstream classes
6
2025/26
Largest class group
31
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
100
4
25.00
30
1
2007/08
95
4
23.75
27
0
2008/09
99
4
24.75
30
1
2009/10
96
4
24.00
29
0
2010/11
95
4
23.75
33
1
2011/12
86
4
21.50
26
0
2012/13
87
4
21.75
25
0
2013/14
81
4
20.25
23
0
2014/15
78
4
19.50
24
0
2015/16
74
3
24.67
32
1
2016/17
85
3
28.33
30
1
2017/18
90
4
22.50
28
0
2019/20
116
5
23.20
26
0
2020/21
116
5
23.20
27
0
2021/22
119
6
19.83
29
0
2022/23
139
6
23.17
34
1
2023/24
134
6
22.33
34
1
2024/25
133
6
22.17
28
0
2025/26
131
6
21.83
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 127 in 2021/22 → 148, +21 pupils.
Biggest loss in a single year: 1994/95: 140 in 1993/94 → 128, -12 pupils.
Largest single-class increase: 2nd Class in 2021/22 (12 → 24, +12).
Largest single-class decrease: 1st Class in 2023/24 (21 → 13, -8).
Largest cohort-step gain: 1st → 2nd in 2022/23 (15 → 19, +4).
Largest cohort-step loss: 1st → 2nd in 2023/24 (21 → 19, -2).
Overall: 141 (1975/76) → 142 (2025/26), 1.
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
12
18
15.0
6
Senior Infants
12
19
15.7
6
1st Class
13
21
17.2
6
2nd Class
12
24
17.8
6
3rd Class
12
24
17.0
6
4th Class
14
24
17.8
6
5th Class
9
24
16.7
6
6th Class
10
26
16.7
6
Total
74
151
112.7
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).