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
21.44
2025/26
Mainstream classes
16
2025/26
Largest class group
26
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+
2013/14
21
1
21.00
21
0
2014/15
38
2
19.00
19
0
2015/16
65
3
21.67
28
0
2016/17
114
5
22.80
28
0
2017/18
171
7
24.43
30
1
2019/20
276
11
25.09
29
0
2020/21
317
13
24.38
29
0
2021/22
341
14
24.36
30
1
2022/23
367
15
24.47
30
2
2023/24
386
16
24.12
29
0
2024/25
368
16
23.00
27
0
2025/26
343
16
21.44
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 171 in 2017/18 → 241, +70 pupils.
Biggest loss in a single year: 2025/26: 380 in 2024/25 → 355, -25 pupils.
Largest single-class increase: 5th Class in 2022/23 (30 → 60, +30).
Largest single-class decrease: 3rd Class in 2021/22 (57 → 41, -16).
Largest cohort-step gain: JI → SI in 2022/23 (49 → 54, +5).
Largest cohort-step loss: JI → SI in 2025/26 (44 → 39, -5).
Overall: 21 (2013/14) → 355 (2025/26), 334.
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
31
49
42.7
6
Senior Infants
39
54
45.8
6
1st Class
44
55
47.8
6
2nd Class
40
53
45.7
6
3rd Class
41
57
48.8
6
4th Class
29
55
44.3
6
5th Class
27
60
43.3
6
6th Class
23
56
38.2
6
Total
21
398
240.9
13
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).