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
22.56
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+
2016/17
449
18
24.94
33
3
2017/18
451
18
25.06
31
4
2019/20
409
17
24.06
33
2
2020/21
394
16
24.62
31
1
2021/22
395
16
24.69
33
3
2022/23
410
16
25.62
33
5
2023/24
416
16
26.00
33
1
2024/25
389
17
22.88
31
2
2025/26
361
16
22.56
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 395 in 2021/22 → 410, +15 pupils.
Biggest loss in a single year: 2019/20: 451 in 2018/19 → 409, -42 pupils.
Largest single-class increase: 6th Class in 2024/25 (29 → 48, +19).
Largest single-class decrease: 3rd Class in 2022/23 (45 → 30, -15).
Largest cohort-step gain: JI → SI in 2022/23 (77 → 88, +11).
Largest cohort-step loss: 1st → 2nd in 2024/25 (85 → 30, -55).
Overall: 449 (2016/17) → 361 (2025/26), -88.
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
53
77
67.0
6
Senior Infants
59
88
71.7
6
1st Class
65
85
74.7
6
2nd Class
28
48
37.2
6
3rd Class
27
45
33.5
6
4th Class
29
48
35.7
6
5th Class
29
47
35.7
6
6th Class
29
48
38.8
6
Total
361
451
412.5
10
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).