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
22.38
2025/26
Mainstream classes
26
2025/26
Largest class group
28
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+
2017/18
632
24
26.33
29
0
2019/20
629
24
26.21
31
1
2020/21
637
24
26.54
29
0
2021/22
642
25
25.68
28
0
2022/23
633
27
23.44
28
0
2023/24
620
27
22.96
29
0
2024/25
597
27
22.11
28
0
2025/26
582
26
22.38
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2020/21: 639 in 2019/20 → 648, +9 pupils.
Biggest loss in a single year: 2024/25: 645 in 2023/24 → 619, -26 pupils.
Largest single-class increase: 4th Class in 2025/26 (66 → 85, +19).
Largest single-class decrease: Senior Infants in 2023/24 (87 → 69, -18).
Largest cohort-step gain: JI → SI in 2022/23 (83 → 87, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (87 → 84, -3).
Overall: 639 (2017/18) → 605 (2025/26), -34.
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
68
83
74.2
6
Senior Infants
67
87
74.7
6
1st Class
66
84
76.0
6
2nd Class
68
81
77.3
6
3rd Class
68
85
79.8
6
4th Class
66
85
79.7
6
5th Class
70
85
80.7
6
6th Class
80
87
83.2
6
Total
605
658
638.8
9
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).