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
21.88
2025/26
Mainstream classes
24
2025/26
Largest class group
25
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+
2006/07
450
20
22.50
26
0
2007/08
481
21
22.90
27
0
2008/09
500
21
23.81
27
0
2009/10
517
22
23.50
27
0
2010/11
549
23
23.87
27
0
2011/12
572
24
23.83
27
0
2012/13
585
24
24.38
27
0
2013/14
617
25
24.68
28
0
2014/15
609
24
25.38
29
0
2015/16
599
24
24.96
29
0
2016/17
593
24
24.71
28
0
2017/18
591
24
24.62
28
0
2019/20
593
24
24.71
28
0
2020/21
596
24
24.83
27
0
2021/22
585
24
24.38
27
0
2022/23
560
24
23.33
26
0
2023/24
547
24
22.79
26
0
2024/25
544
24
22.67
26
0
2025/26
525
24
21.88
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 414 in 2005/06 → 460, +46 pupils.
Biggest loss in a single year: 1998/99: 298 in 1997/98 → 271, -27 pupils.
Largest single-class increase: 1st Class in 2023/24 (61 → 76, +15).
Largest single-class decrease: 1st Class in 2022/23 (76 → 61, -15).
Largest cohort-step gain: SI → 1st in 2023/24 (73 → 76, +3).
Largest cohort-step loss: 4th → 5th in 2022/23 (73 → 65, -8).
Overall: 343 (1993/94) → 525 (2025/26), 182.
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
55
73
63.7
6
Senior Infants
55
74
66.5
6
1st Class
61
78
70.7
6
2nd Class
63
75
71.0
6
3rd Class
63
75
71.7
6
4th Class
63
79
71.8
6
5th Class
65
79
72.0
6
6th Class
65
78
72.2
6
Total
271
617
467.3
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).