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
24.88
2025/26
Mainstream classes
16
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+
2012/13
39
2
19.50
21
0
2013/14
95
4
23.75
28
0
2014/15
152
6
25.33
30
2
2015/16
220
8
27.50
30
2
2016/17
294
10
29.40
33
5
2017/18
371
13
28.54
33
10
2019/20
465
16
29.06
31
7
2020/21
454
16
28.38
30
3
2021/22
430
16
26.88
29
0
2022/23
427
16
26.69
28
0
2023/24
404
16
25.25
28
0
2024/25
398
16
24.88
28
0
2025/26
398
16
24.88
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 294 in 2016/17 → 375, +81 pupils.
Biggest loss in a single year: 2021/22: 466 in 2020/21 → 443, -23 pupils.
Largest single-class increase: Senior Infants in 2022/23 (47 → 54, +7).
Largest single-class decrease: Senior Infants in 2021/22 (57 → 47, -10).
Largest cohort-step gain: 1st → 2nd in 2025/26 (48 → 54, +6).
Largest cohort-step loss: JI → SI in 2023/24 (53 → 48, -5).
Overall: 39 (2012/13) → 410 (2025/26), 371.
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
42
55
48.7
6
Senior Infants
47
57
50.3
6
1st Class
48
57
52.3
6
2nd Class
48
56
53.2
6
3rd Class
48
60
53.5
6
4th Class
52
58
55.0
6
5th Class
53
59
56.2
6
6th Class
53
58
55.3
6
Total
39
477
333.6
14
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).