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
22.76
2025/26
Mainstream classes
25
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+
2019/20
534
23
23.22
27
0
2020/21
525
22
23.86
29
0
2021/22
533
23
23.17
30
1
2022/23
536
25
21.44
28
0
2023/24
554
25
22.16
27
0
2024/25
573
25
22.92
26
0
2025/26
569
25
22.76
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2024/25: 554 in 2023/24 → 573, +19 pupils.
Biggest loss in a single year: 2019/20: 561 in 2018/19 → 534, -27 pupils.
Largest single-class increase: 3rd Class in 2022/23 (62 → 82, +20).
Largest single-class decrease: 2nd Class in 2021/22 (134 → 75, -59).
Largest cohort-step gain: 5th → 6th in 2023/24 (57 → 66, +9).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (134 → 62, -72).
Overall: 561 (2018/19) → 575 (2025/26), 14.
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
55
69
61.8
6
Senior Infants
59
70
65.2
6
1st Class
63
72
68.0
6
2nd Class
67
134
82.8
6
3rd Class
57
83
71.3
6
4th Class
59
89
71.0
6
5th Class
57
88
70.8
6
6th Class
64
75
70.0
5
Total
525
575
548.9
8
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).