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
18.80
2025/26
Mainstream classes
15
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
358
17
21.06
24
0
2007/08
330
17
19.41
25
0
2008/09
342
17
20.12
25
0
2009/10
347
16
21.69
28
0
2010/11
328
16
20.50
27
0
2011/12
329
16
20.56
29
0
2012/13
321
16
20.06
25
0
2013/14
329
16
20.56
26
0
2014/15
316
16
19.75
26
0
2015/16
338
16
21.12
26
0
2016/17
339
16
21.19
27
0
2017/18
336
16
21.00
27
0
2019/20
341
16
21.31
28
0
2020/21
342
16
21.38
27
0
2021/22
329
16
20.56
27
0
2022/23
324
16
20.25
26
0
2023/24
311
16
19.44
26
0
2024/25
289
16
18.06
23
0
2025/26
282
15
18.80
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 322 in 2014/15 → 344, +22 pupils.
Biggest loss in a single year: 2007/08: 370 in 2006/07 → 344, -26 pupils.
Largest single-class increase: Senior Infants in 2022/23 (30 → 47, +17).
Largest single-class decrease: 3rd Class in 2021/22 (53 → 35, -18).
Largest cohort-step gain: SI → 1st in 2022/23 (30 → 34, +4).
Largest cohort-step loss: SI → 1st in 2024/25 (38 → 34, -4).
Overall: 489 (1993/94) → 294 (2025/26), -195.
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
31
46
36.8
6
Senior Infants
30
47
37.3
6
1st Class
34
48
36.7
6
2nd Class
33
46
37.2
6
3rd Class
33
53
39.2
6
4th Class
33
53
40.7
6
5th Class
34
52
42.3
6
6th Class
33
53
44.8
6
Total
294
489
375.9
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).