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
24.44
2025/26
Mainstream classes
16
2025/26
Largest class group
29
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
41
2
20.50
25
0
2014/15
91
4
22.75
31
1
2015/16
153
6
25.50
30
1
2016/17
197
8
24.62
31
1
2017/18
240
9
26.67
33
1
2019/20
317
13
24.38
28
0
2020/21
368
14
26.29
30
1
2021/22
380
15
25.33
28
0
2022/23
395
16
24.69
27
0
2023/24
392
16
24.50
27
0
2024/25
379
16
23.69
28
0
2025/26
391
16
24.44
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 91 in 2014/15 → 153, +62 pupils.
Biggest loss in a single year: 2024/25: 392 in 2023/24 → 379, -13 pupils.
Largest single-class increase: 6th Class in 2022/23 (27 → 51, +24).
Largest single-class decrease: 1st Class in 2025/26 (55 → 44, -11).
Largest cohort-step gain: JI → SI in 2025/26 (40 → 49, +9).
Largest cohort-step loss: JI → SI in 2021/22 (59 → 54, -5).
Overall: 41 (2013/14) → 391 (2025/26), 350.
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
40
59
49.7
6
Senior Infants
46
54
50.7
6
1st Class
44
55
51.2
6
2nd Class
46
57
50.7
6
3rd Class
43
50
46.8
6
4th Class
44
56
48.2
6
5th Class
29
51
45.7
6
6th Class
27
51
41.3
6
Total
41
395
278.8
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).