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
22.81
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
286
11
26.00
31
1
2007/08
328
12
27.33
35
4
2008/09
351
14
25.07
32
4
2009/10
349
14
24.93
33
1
2010/11
398
16
24.88
32
1
2011/12
435
16
27.19
32
6
2012/13
431
16
26.94
31
4
2013/14
441
16
27.56
30
3
2014/15
442
16
27.62
31
4
2015/16
433
16
27.06
30
3
2016/17
433
16
27.06
31
4
2017/18
418
16
26.12
30
2
2019/20
417
16
26.06
30
1
2020/21
405
16
25.31
29
0
2021/22
417
16
26.06
30
3
2022/23
414
16
25.88
31
2
2023/24
396
17
23.29
29
0
2024/25
378
16
23.62
28
0
2025/26
365
16
22.81
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 201 in 1983/84 → 262, +61 pupils.
Biggest loss in a single year: 2003/04: 259 in 2002/03 → 240, -19 pupils.
Largest single-class increase: 3rd Class in 2021/22 (44 → 58, +14).
Largest single-class decrease: 2nd Class in 2021/22 (57 → 44, -13).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (44 → 50, +6).
Largest cohort-step loss: JI → SI in 2024/25 (48 → 43, -5).
Overall: 77 (1974/75) → 377 (2025/26), 300.
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
44
50
46.7
6
Senior Infants
43
52
47.0
6
1st Class
41
52
46.8
6
2nd Class
42
57
48.3
6
3rd Class
44
58
49.5
6
4th Class
44
59
51.5
6
5th Class
44
60
54.0
6
6th Class
47
60
54.3
6
Total
68
442
294.5
43
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).