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
24.12
2025/26
Mainstream classes
17
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
432
16
27.00
30
2
2007/08
425
16
26.56
30
2
2008/09
427
16
26.69
31
3
2009/10
421
16
26.31
30
2
2010/11
399
16
24.94
28
0
2011/12
404
15
26.93
32
3
2012/13
401
16
25.06
29
0
2013/14
430
16
26.88
31
5
2014/15
436
16
27.25
32
3
2015/16
463
16
28.94
32
4
2016/17
464
16
29.00
31
7
2017/18
455
16
28.44
30
8
2019/20
441
16
27.56
30
2
2020/21
429
16
26.81
30
2
2021/22
421
16
26.31
30
1
2022/23
439
16
27.44
32
3
2023/24
423
17
24.88
29
0
2024/25
430
17
25.29
28
0
2025/26
410
17
24.12
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1983/84: 272 in 1982/83 → 305, +33 pupils.
Biggest loss in a single year: 2010/11: 421 in 2009/10 → 399, -22 pupils.
Largest single-class increase: 6th Class in 2022/23 (50 → 62, +12).
Largest single-class decrease: Junior Infants in 2025/26 (56 → 46, -10).
Largest cohort-step gain: JI → SI in 2024/25 (48 → 56, +8).
Largest cohort-step loss: 4th → 5th in 2024/25 (56 → 49, -7).
Overall: 190 (1974/75) → 410 (2025/26), 220.
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
56
50.7
6
Senior Infants
50
56
53.0
6
1st Class
47
55
51.5
6
2nd Class
50
54
51.5
6
3rd Class
49
56
54.0
6
4th Class
51
58
55.5
6
5th Class
49
57
53.5
6
6th Class
50
62
55.7
6
Total
190
464
379.0
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).