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
23.50
2025/26
Mainstream classes
16
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
409
15
27.27
33
5
2007/08
397
15
26.47
33
4
2008/09
396
15
26.40
32
3
2009/10
370
14
26.43
36
4
2010/11
373
14
26.64
34
3
2011/12
375
14
26.79
34
3
2012/13
377
14
26.93
34
4
2013/14
367
14
26.21
37
1
2014/15
368
14
26.29
34
5
2015/16
367
14
26.21
30
1
2016/17
364
14
26.00
32
1
2017/18
374
14
26.71
33
2
2019/20
340
14
24.29
34
2
2020/21
335
15
22.33
35
1
2021/22
334
14
23.86
29
0
2022/23
395
16
24.69
28
0
2023/24
378
16
23.62
28
0
2024/25
366
16
22.88
27
0
2025/26
376
16
23.50
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 346 in 2021/22 → 408, +62 pupils.
Biggest loss in a single year: 2009/10: 396 in 2008/09 → 370, -26 pupils.
Largest single-class increase: 6th Class in 2022/23 (39 → 54, +15).
Largest single-class decrease: 6th Class in 2021/22 (56 → 39, -17).
Largest cohort-step gain: 4th → 5th in 2022/23 (44 → 56, +12).
Largest cohort-step loss: 5th → 6th in 2023/24 (56 → 52, -4).
Overall: 301 (1996/97) → 393 (2025/26), 92.
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
40
46
43.7
6
Senior Infants
37
49
43.2
6
1st Class
40
49
44.2
6
2nd Class
35
52
45.5
6
3rd Class
38
51
47.0
6
4th Class
44
57
49.0
6
5th Class
36
56
48.0
6
6th Class
39
56
50.5
6
Total
292
409
357.9
30
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).