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
22.00
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
284
11
25.82
33
1
2007/08
311
12
25.92
32
2
2008/09
343
13
26.38
34
2
2009/10
367
13
28.23
33
5
2010/11
372
15
24.80
33
3
2011/12
366
15
24.40
31
1
2012/13
377
14
26.93
33
4
2013/14
394
15
26.27
30
4
2014/15
397
15
26.47
33
2
2015/16
399
15
26.60
30
1
2016/17
429
16
26.81
31
2
2017/18
425
16
26.56
30
1
2019/20
406
16
25.38
31
1
2020/21
418
16
26.12
31
4
2021/22
376
16
23.50
28
0
2022/23
372
15
24.80
31
1
2023/24
376
15
25.07
31
1
2024/25
371
16
23.19
29
0
2025/26
352
16
22.00
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 311 in 2007/08 → 343, +32 pupils.
Biggest loss in a single year: 2021/22: 418 in 2020/21 → 376, -42 pupils.
Largest single-class increase: 1st Class in 2024/25 (31 → 56, +25).
Largest single-class decrease: Junior Infants in 2021/22 (60 → 32, -28).
Largest cohort-step gain: 1st → 2nd in 2023/24 (53 → 57, +4).
Largest cohort-step loss: JI → SI in 2021/22 (60 → 55, -5).
Overall: 280 (1999/00) → 352 (2025/26), 72.
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
32
60
43.8
6
Senior Infants
31
55
44.2
6
1st Class
31
56
44.0
6
2nd Class
34
59
47.5
6
3rd Class
37
58
46.8
6
4th Class
42
56
49.2
6
5th Class
43
59
49.8
6
6th Class
42
59
52.2
6
Total
246
429
348.4
27
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).