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
25.06
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
21
2
10.50
11
0
2013/14
92
4
23.00
25
0
2014/15
157
7
22.43
23
0
2015/16
217
9
24.11
29
0
2016/17
271
11
24.64
33
2
2017/18
315
12
26.25
32
3
2019/20
414
16
25.88
29
0
2020/21
429
16
26.81
29
0
2021/22
436
16
27.25
28
0
2022/23
433
16
27.06
28
0
2023/24
423
16
26.44
28
0
2024/25
408
16
25.50
28
0
2025/26
401
16
25.06
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 21 in 2012/13 → 92, +71 pupils.
Biggest loss in a single year: 2024/25: 435 in 2023/24 → 419, -16 pupils.
Largest single-class increase: 6th Class in 2021/22 (50 → 56, +6).
Largest single-class decrease: 1st Class in 2022/23 (53 → 49, -4).
Largest cohort-step gain: 3rd → 4th in 2025/26 (50 → 56, +6).
Largest cohort-step loss: JI → SI in 2023/24 (54 → 51, -3).
Overall: 21 (2012/13) → 413 (2025/26), 392.
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
47
54
51.0
6
Senior Infants
49
53
51.2
6
1st Class
49
55
52.2
6
2nd Class
50
56
52.5
6
3rd Class
50
56
53.5
6
4th Class
52
57
55.2
6
5th Class
53
56
54.5
6
6th Class
50
56
54.0
6
Total
21
448
316.9
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).