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
23.53
2025/26
Mainstream classes
30
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
331
12
27.58
33
5
2007/08
343
12
28.58
32
4
2008/09
376
14
26.86
32
5
2009/10
403
14
28.79
32
7
2010/11
428
16
26.75
33
6
2011/12
464
17
27.29
31
4
2012/13
523
19
27.53
34
6
2013/14
577
22
26.23
32
4
2014/15
619
23
26.91
33
7
2015/16
673
24
28.04
34
12
2016/17
707
25
28.28
34
13
2017/18
741
26
28.50
34
15
2019/20
776
28
27.71
34
15
2020/21
766
30
25.53
34
11
2021/22
755
30
25.17
33
9
2022/23
748
31
24.13
32
7
2023/24
707
31
22.81
32
3
2024/25
713
30
23.77
31
1
2025/26
706
30
23.53
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 464 in 2011/12 → 523, +59 pupils.
Biggest loss in a single year: 2023/24: 760 in 2022/23 → 725, -35 pupils.
Largest single-class increase: 6th Class in 2022/23 (94 → 124, +30).
Largest single-class decrease: 6th Class in 2023/24 (124 → 94, -30).
Largest cohort-step gain: JI → SI in 2022/23 (87 → 91, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (91 → 88, -3).
Overall: 274 (1993/94) → 724 (2025/26), 450.
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
85
98
91.7
6
Senior Infants
85
98
92.5
6
1st Class
85
96
90.3
6
2nd Class
85
95
89.0
6
3rd Class
86
95
90.7
6
4th Class
86
120
96.0
6
5th Class
86
123
97.0
6
6th Class
86
124
97.3
6
Total
274
776
486.6
33
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).