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
23.95
2025/26
Mainstream classes
21
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
3
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
213
8
26.62
30
1
2007/08
222
8
27.75
30
1
2008/09
217
8
27.12
29
0
2009/10
242
9
26.89
30
2
2010/11
273
10
27.30
31
2
2011/12
302
11
27.45
29
0
2012/13
333
12
27.75
29
0
2013/14
374
13
28.77
30
2
2014/15
400
14
28.57
30
2
2015/16
437
15
29.13
30
8
2016/17
463
16
28.94
31
8
2017/18
463
16
28.94
30
7
2019/20
464
18
25.78
30
3
2020/21
460
18
25.56
30
3
2021/22
446
18
24.78
29
0
2022/23
460
18
25.56
30
2
2023/24
479
20
23.95
31
2
2024/25
501
21
23.86
30
1
2025/26
503
21
23.95
30
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2001/02: 44 in 2000/01 → 86, +42 pupils.
Biggest loss in a single year: 2021/22: 466 in 2020/21 → 452, -14 pupils.
Largest single-class increase: Senior Infants in 2023/24 (56 → 69, +13).
Largest single-class decrease: 6th Class in 2021/22 (59 → 54, -5).
Largest cohort-step gain: JI → SI in 2023/24 (65 → 69, +4).
Largest cohort-step loss: 1st → 2nd in 2021/22 (58 → 56, -2).
Overall: 44 (2000/01) → 515 (2025/26), 471.
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
71
63.8
6
Senior Infants
55
72
63.0
6
1st Class
56
73
62.0
6
2nd Class
55
70
59.2
6
3rd Class
55
59
57.2
6
4th Class
55
58
57.2
6
5th Class
55
61
57.3
6
6th Class
54
60
57.2
6
Total
44
515
332.2
26
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).