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
23.19
2025/26
Mainstream classes
16
2025/26
Largest class group
28
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
65
3
21.67
27
0
2007/08
115
5
23.00
27
0
2008/09
179
7
25.57
28
0
2009/10
238
9
26.44
33
3
2010/11
297
11
27.00
32
5
2011/12
354
13
27.23
31
6
2012/13
430
16
26.88
33
8
2013/14
456
16
28.50
35
10
2014/15
481
16
30.06
33
12
2015/16
482
17
28.35
33
9
2016/17
471
17
27.71
33
9
2017/18
461
16
28.81
32
7
2019/20
457
16
28.56
31
5
2020/21
452
17
26.59
31
4
2021/22
448
17
26.35
31
4
2022/23
418
16
26.12
31
2
2023/24
392
16
24.50
29
0
2024/25
381
16
23.81
28
0
2025/26
371
16
23.19
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 354 in 2011/12 → 430, +76 pupils.
Biggest loss in a single year: 2022/23: 448 in 2021/22 → 418, -30 pupils.
Largest single-class increase: 1st Class in 2025/26 (36 → 49, +13).
Largest single-class decrease: Junior Infants in 2022/23 (52 → 37, -15).
Largest cohort-step gain: SI → 1st in 2025/26 (46 → 49, +3).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (58 → 52, -6).
Overall: 26 (2005/06) → 376 (2025/26), 350.
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
57
46.8
6
Senior Infants
37
62
49.8
6
1st Class
36
59
50.7
6
2nd Class
35
61
52.2
6
3rd Class
47
61
53.8
6
4th Class
50
57
53.5
6
5th Class
49
55
53.0
6
6th Class
48
56
51.3
6
Total
26
482
354.0
21
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).