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
23.06
2025/26
Mainstream classes
16
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
1
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
22
2
11.00
18
0
2007/08
48
2
24.00
27
0
2008/09
82
4
20.50
27
0
2009/10
117
5
23.40
31
1
2010/11
163
7
23.29
31
1
2011/12
222
8
27.75
35
3
2012/13
302
11
27.45
34
3
2013/14
349
13
26.85
33
4
2014/15
400
15
26.67
35
5
2015/16
431
16
26.94
32
6
2016/17
462
17
27.18
42
4
2017/18
476
17
28.00
35
6
2019/20
465
18
25.83
30
2
2020/21
435
18
24.17
29
0
2021/22
418
17
24.59
30
1
2022/23
391
17
23.00
29
0
2023/24
386
16
24.12
32
2
2024/25
379
16
23.69
34
1
2025/26
369
16
23.06
34
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 222 in 2011/12 → 302, +80 pupils.
Biggest loss in a single year: 2020/21: 465 in 2019/20 → 435, -30 pupils.
Largest single-class increase: Junior Infants in 2023/24 (37 → 66, +29).
Largest single-class decrease: 1st Class in 2024/25 (47 → 35, -12).
Largest cohort-step gain: 1st → 2nd in 2022/23 (47 → 49, +2).
Largest cohort-step loss: 5th → 6th in 2021/22 (68 → 64, -4).
Overall: 22 (2006/07) → 381 (2025/26), 359.
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
37
66
50.0
6
Senior Infants
37
65
49.8
6
1st Class
35
63
47.8
6
2nd Class
35
56
46.3
6
3rd Class
40
55
48.3
6
4th Class
40
61
50.3
6
5th Class
44
68
53.8
6
6th Class
46
64
54.3
6
Total
22
483
321.4
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).