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
22.56
2025/26
Mainstream classes
16
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
284
10
28.40
31
5
2007/08
318
11
28.91
31
8
2008/09
341
13
26.23
32
5
2009/10
381
14
27.21
32
6
2010/11
407
15
27.13
32
7
2011/12
433
15
28.87
32
10
2012/13
452
16
28.25
31
11
2013/14
481
17
28.29
31
12
2014/15
479
17
28.18
31
11
2015/16
477
17
28.06
31
8
2016/17
478
17
28.12
31
7
2017/18
471
17
27.71
31
7
2019/20
454
18
25.22
32
6
2020/21
440
17
25.88
31
3
2021/22
429
17
25.24
31
3
2022/23
413
17
24.29
31
2
2023/24
389
16
24.31
31
1
2024/25
372
16
23.25
31
1
2025/26
361
16
22.56
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2009/10: 341 in 2008/09 → 381, +40 pupils.
Biggest loss in a single year: 2023/24: 413 in 2022/23 → 389, -24 pupils.
Largest single-class increase: 2nd Class in 2024/25 (44 → 51, +7).
Largest single-class decrease: 2nd Class in 2021/22 (62 → 48, -14).
Largest cohort-step gain: SI → 1st in 2025/26 (47 → 49, +2).
Largest cohort-step loss: 1st → 2nd in 2023/24 (48 → 44, -4).
Overall: 159 (1993/94) → 367 (2025/26), 208.
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
46
53
48.5
6
Senior Infants
44
52
48.0
6
1st Class
44
52
48.0
6
2nd Class
43
62
48.7
6
3rd Class
42
62
50.3
6
4th Class
40
60
51.0
6
5th Class
40
59
53.0
6
6th Class
49
60
55.2
6
Total
159
481
343.0
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).