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
22.73
2025/26
Mainstream classes
15
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+
2010/11
17
1
17.00
17
0
2011/12
57
3
19.00
22
0
2012/13
137
5
27.40
29
0
2013/14
210
8
26.25
30
3
2014/15
267
10
26.70
30
4
2015/16
326
12
27.17
31
6
2016/17
375
14
26.79
31
3
2017/18
416
15
27.73
31
5
2019/20
440
16
27.50
31
3
2020/21
405
17
23.82
30
1
2021/22
384
16
24.00
30
1
2022/23
368
15
24.53
28
0
2023/24
372
15
24.80
29
0
2024/25
356
16
22.25
28
0
2025/26
341
15
22.73
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 57 in 2011/12 → 137, +80 pupils.
Biggest loss in a single year: 2020/21: 440 in 2019/20 → 405, -35 pupils.
Largest single-class increase: Senior Infants in 2023/24 (38 → 47, +9).
Largest single-class decrease: 2nd Class in 2023/24 (45 → 32, -13).
Largest cohort-step gain: JI → SI in 2023/24 (40 → 47, +7).
Largest cohort-step loss: SI → 1st in 2024/25 (47 → 43, -4).
Overall: 17 (2010/11) → 353 (2025/26), 336.
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
33
44
39.8
6
Senior Infants
32
47
41.0
6
1st Class
30
54
42.5
6
2nd Class
32
55
44.7
6
3rd Class
35
55
46.8
6
4th Class
34
56
50.0
6
5th Class
47
58
53.8
6
6th Class
52
57
55.0
6
Total
17
455
309.9
16
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).