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
25.38
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
20
1
20.00
20
0
2013/14
63
3
21.00
27
0
2014/15
86
4
21.50
27
0
2015/16
154
6
25.67
28
0
2016/17
209
9
23.22
28
0
2017/18
302
12
25.17
29
0
2019/20
403
16
25.19
31
1
2020/21
423
16
26.44
29
0
2021/22
413
16
25.81
28
0
2022/23
423
16
26.44
29
0
2023/24
411
16
25.69
28
0
2024/25
408
16
25.50
29
0
2025/26
406
16
25.38
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 221 in 2016/17 → 313, +92 pupils.
Biggest loss in a single year: 2023/24: 438 in 2022/23 → 423, -15 pupils.
Largest single-class increase: 5th Class in 2021/22 (41 → 56, +15).
Largest single-class decrease: Senior Infants in 2021/22 (56 → 46, -10).
Largest cohort-step gain: 1st → 2nd in 2023/24 (46 → 49, +3).
Largest cohort-step loss: JI → SI in 2021/22 (51 → 46, -5).
Overall: 20 (2012/13) → 417 (2025/26), 397.
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
46
55
50.8
6
Senior Infants
46
57
51.3
6
1st Class
46
57
52.8
6
2nd Class
49
56
54.0
6
3rd Class
51
55
53.5
6
4th Class
52
57
54.2
6
5th Class
41
56
51.5
6
6th Class
41
56
50.8
6
Total
20
439
302.4
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).