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
24.67
2025/26
Mainstream classes
24
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+
2019/20
626
24
26.08
29
0
2020/21
603
24
25.12
29
0
2021/22
623
24
25.96
29
0
2022/23
634
24
26.42
28
0
2023/24
608
24
25.33
27
0
2024/25
567
24
23.62
27
0
2025/26
592
24
24.67
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2025/26: 567 in 2024/25 → 598, +31 pupils.
Biggest loss in a single year: 2024/25: 608 in 2023/24 → 567, -41 pupils.
Largest single-class increase: 6th Class in 2021/22 (67 → 82, +15).
Largest single-class decrease: 2nd Class in 2024/25 (75 → 64, -11).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (64 → 75, +11).
Largest cohort-step loss: 1st → 2nd in 2024/25 (79 → 64, -15).
Overall: 626 (2019/20) → 598 (2025/26), -28.
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
73
84
77.0
6
Senior Infants
74
83
79.0
6
1st Class
74
80
77.3
6
2nd Class
64
84
76.5
6
3rd Class
65
78
72.2
6
4th Class
67
78
72.3
6
5th Class
70
87
77.0
6
6th Class
67
82
74.2
6
Total
567
634
608.4
7
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).