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
23.94
2025/26
Mainstream classes
18
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
3
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2015/16
3
1
3.00
3
0
2016/17
40
2
20.00
20
0
2017/18
98
4
24.50
26
0
2019/20
208
8
26.00
28
0
2020/21
257
10
25.70
28
0
2021/22
307
12
25.58
28
0
2022/23
346
14
24.71
30
1
2023/24
383
16
23.94
29
0
2024/25
407
18
22.61
31
1
2025/26
431
18
23.94
32
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 40 in 2016/17 → 98, +58 pupils.
Largest single-class increase: 6th Class in 2023/24 (16 → 47, +31).
Largest single-class decrease: Junior Infants in 2022/23 (50 → 36, -14).
Largest cohort-step gain: 1st → 2nd in 2025/26 (38 → 50, +12).
Largest cohort-step loss: 4th → 5th in 2024/25 (50 → 46, -4).
Overall: 3 (2015/16) → 443 (2025/26), 440.
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
71
50.5
6
Senior Infants
36
59
47.3
6
1st Class
37
54
46.0
6
2nd Class
48
57
50.8
6
3rd Class
40
60
51.3
6
4th Class
15
62
45.8
6
5th Class
15
62
44.2
5
6th Class
16
60
42.8
4
Total
3
443
241.7
11
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).