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
21.70
2025/26
Mainstream classes
20
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2011/12
571
22
25.95
34
5
2012/13
545
21
25.95
34
3
2013/14
547
20
27.35
35
3
2014/15
519
20
25.95
37
3
2015/16
492
20
24.60
31
2
2016/17
462
19
24.32
31
2
2017/18
487
19
25.63
32
2
2019/20
468
19
24.63
31
2
2020/21
457
19
24.05
32
2
2021/22
424
19
22.32
31
2
2022/23
449
19
23.63
31
2
2023/24
470
20
23.50
29
0
2024/25
461
21
21.95
30
1
2025/26
434
20
21.70
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 430 in 2021/22 → 461, +31 pupils.
Biggest loss in a single year: 2021/22: 463 in 2020/21 → 430, -33 pupils.
Largest single-class increase: 5th Class in 2023/24 (48 → 73, +25).
Largest single-class decrease: 6th Class in 2021/22 (81 → 48, -33).
Largest cohort-step gain: 2nd → 3rd in 2023/24 (47 → 56, +9).
Largest cohort-step loss: JI → SI in 2024/25 (63 → 55, -8).
Overall: 571 (2011/12) → 453 (2025/26), -118.
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
45
63
54.0
6
Senior Infants
43
64
56.0
6
1st Class
46
63
54.0
6
2nd Class
47
68
56.8
6
3rd Class
46
68
56.2
6
4th Class
48
69
57.7
6
5th Class
48
73
57.5
6
6th Class
48
81
61.2
6
Total
430
571
489.5
15
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).