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
25.92
2025/26
Mainstream classes
24
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+
2006/07
58
2
29.00
29
0
2007/08
120
4
30.00
31
3
2008/09
200
7
28.57
30
1
2009/10
284
10
28.40
33
2
2010/11
372
15
24.80
29
0
2011/12
467
19
24.58
28
0
2012/13
548
22
24.91
30
2
2013/14
636
24
26.50
30
6
2014/15
662
24
27.58
31
11
2015/16
664
24
27.67
31
8
2016/17
669
24
27.88
30
5
2017/18
683
24
28.46
30
8
2019/20
656
24
27.33
30
2
2020/21
646
24
26.92
29
0
2021/22
628
24
26.17
29
0
2022/23
634
24
26.42
28
0
2023/24
618
24
25.75
28
0
2024/25
622
24
25.92
28
0
2025/26
622
24
25.92
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 372 in 2010/11 → 467, +95 pupils.
Biggest loss in a single year: 2021/22: 646 in 2020/21 → 628, -18 pupils.
Largest single-class increase: 4th Class in 2025/26 (71 → 85, +14).
Largest single-class decrease: 2nd Class in 2021/22 (85 → 70, -15).
Largest cohort-step gain: 3rd → 4th in 2025/26 (80 → 85, +5).
Largest cohort-step loss: 1st → 2nd in 2021/22 (76 → 70, -6).
Overall: 58 (2006/07) → 622 (2025/26), 564.
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
71
81
77.5
6
Senior Infants
75
82
77.5
6
1st Class
75
80
78.0
6
2nd Class
70
85
78.0
6
3rd Class
69
81
77.5
6
4th Class
71
85
79.8
6
5th Class
74
83
79.8
6
6th Class
71
84
80.2
6
Total
58
683
523.0
20
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).