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
22.13
2025/26
Mainstream classes
31
2025/26
Largest class group
27
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+
2007/08
81
5
16.20
18
0
2008/09
154
9
17.11
19
0
2009/10
214
12
17.83
22
0
2010/11
265
15
17.67
23
0
2011/12
330
16
20.62
24
0
2012/13
429
16
26.81
33
2
2013/14
542
24
22.58
26
0
2014/15
651
29
22.45
26
0
2015/16
705
29
24.31
28
0
2016/17
762
32
23.81
29
0
2017/18
815
32
25.47
31
5
2019/20
863
32
26.97
30
2
2020/21
829
32
25.91
29
0
2021/22
815
32
25.47
30
2
2022/23
794
32
24.81
28
0
2023/24
792
32
24.75
29
0
2024/25
735
31
23.71
29
0
2025/26
686
31
22.13
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 429 in 2012/13 → 548, +119 pupils.
Biggest loss in a single year: 2024/25: 804 in 2023/24 → 747, -57 pupils.
Largest single-class increase: Senior Infants in 2022/23 (83 → 102, +19).
Largest single-class decrease: Junior Infants in 2024/25 (87 → 60, -27).
Largest cohort-step gain: 1st → 2nd in 2022/23 (88 → 102, +14).
Largest cohort-step loss: 5th → 6th in 2022/23 (110 → 103, -7).
Overall: 81 (2007/08) → 698 (2025/26), 617.
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
54
90
76.7
6
Senior Infants
60
102
82.8
6
1st Class
82
105
90.8
6
2nd Class
88
103
97.0
6
3rd Class
89
113
102.8
6
4th Class
99
115
107.8
6
5th Class
101
113
108.8
6
6th Class
103
118
110.3
6
Total
81
875
603.1
19
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).