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
23.46
2025/26
Mainstream classes
24
2025/26
Largest class group
26
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+
2011/12
16
1
16.00
16
0
2012/13
83
4
20.75
24
0
2013/14
141
6
23.50
30
1
2014/15
162
7
23.14
30
1
2015/16
256
10
25.60
31
1
2016/17
334
15
22.27
28
0
2017/18
480
19
25.26
29
0
2019/20
616
24
25.67
27
0
2020/21
610
24
25.42
27
0
2021/22
599
24
24.96
27
0
2022/23
604
24
25.17
27
0
2023/24
588
24
24.50
27
0
2024/25
570
24
23.75
27
0
2025/26
563
24
23.46
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 345 in 2016/17 → 491, +146 pupils.
Biggest loss in a single year: 2023/24: 616 in 2022/23 → 599, -17 pupils.
Largest single-class increase: Junior Infants in 2025/26 (49 → 62, +13).
Largest single-class decrease: Junior Infants in 2024/25 (64 → 49, -15).
Largest cohort-step gain: SI → 1st in 2024/25 (62 → 70, +8).
Largest cohort-step loss: JI → SI in 2023/24 (68 → 62, -6).
Overall: 16 (2011/12) → 575 (2025/26), 559.
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
49
74
65.0
6
Senior Infants
57
76
68.7
6
1st Class
70
78
75.2
6
2nd Class
73
78
76.3
6
3rd Class
75
79
76.5
6
4th Class
74
80
77.2
6
5th Class
74
79
76.8
6
6th Class
75
80
77.3
6
Total
16
628
422.7
15
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).