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
23.04
2025/26
Mainstream classes
24
2025/26
Largest class group
26
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+
2010/11
432
16
27.00
31
4
2011/12
461
16
28.81
32
6
2012/13
472
17
27.76
32
5
2013/14
505
18
28.06
32
6
2014/15
547
19
28.79
33
6
2015/16
562
20
28.10
33
4
2016/17
576
21
27.43
33
4
2017/18
583
22
26.50
33
4
2019/20
610
23
26.52
32
3
2020/21
612
23
26.61
32
4
2021/22
592
24
24.67
30
3
2022/23
578
24
24.08
28
0
2023/24
578
24
24.08
28
0
2024/25
575
24
23.96
27
0
2025/26
553
24
23.04
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 505 in 2013/14 → 547, +42 pupils.
Biggest loss in a single year: 2025/26: 575 in 2024/25 → 553, -22 pupils.
Largest single-class increase: 3rd Class in 2023/24 (70 → 83, +13).
Largest single-class decrease: Junior Infants in 2025/26 (74 → 51, -23).
Largest cohort-step gain: 1st → 2nd in 2023/24 (68 → 74, +6).
Largest cohort-step loss: 3rd → 4th in 2024/25 (83 → 79, -4).
Overall: 443 (2010/11) → 553 (2025/26), 110.
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
51
74
65.5
6
Senior Infants
64
81
70.5
6
1st Class
63
78
70.3
6
2nd Class
59
80
71.2
6
3rd Class
59
83
72.0
6
4th Class
62
86
75.0
6
5th Class
63
88
77.0
6
6th Class
67
89
79.8
6
Total
443
612
552.8
16
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).