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
25.88
2025/26
Mainstream classes
16
2025/26
Largest class group
29
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+
2007/08
65
3
21.67
28
0
2008/09
210
10
21.00
30
1
2009/10
272
11
24.73
31
3
2010/11
318
13
24.46
30
2
2011/12
345
14
24.64
29
0
2012/13
341
15
22.73
28
0
2013/14
372
16
23.25
28
0
2014/15
356
16
22.25
27
0
2015/16
358
15
23.87
35
1
2016/17
344
14
24.57
32
2
2017/18
341
14
24.36
34
2
2019/20
396
16
24.75
31
2
2020/21
415
16
25.94
34
4
2021/22
427
16
26.69
35
5
2022/23
435
16
27.19
34
6
2023/24
416
16
26.00
32
2
2024/25
416
16
26.00
31
1
2025/26
414
16
25.88
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 65 in 2007/08 → 210, +145 pupils.
Biggest loss in a single year: 2023/24: 435 in 2022/23 → 416, -19 pupils.
Largest single-class increase: 6th Class in 2021/22 (54 → 70, +16).
Largest single-class decrease: Junior Infants in 2021/22 (46 → 35, -11).
Largest cohort-step gain: JI → SI in 2022/23 (35 → 44, +9).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (57 → 53, -4).
Overall: 65 (2007/08) → 417 (2025/26), 352.
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
35
48
40.5
6
Senior Infants
44
54
47.3
6
1st Class
39
55
48.3
6
2nd Class
48
57
53.2
6
3rd Class
50
59
53.7
6
4th Class
52
63
56.5
6
5th Class
54
67
60.7
6
6th Class
54
70
60.8
6
Total
65
435
347.8
19
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).