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
23.54
2025/26
Mainstream classes
13
2025/26
Largest class group
26
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
314
11
28.55
33
2
2007/08
308
12
25.67
29
0
2008/09
328
12
27.33
30
1
2009/10
325
12
27.08
31
1
2010/11
349
13
26.85
29
0
2011/12
338
13
26.00
31
3
2012/13
371
13
28.54
31
3
2013/14
340
13
26.15
31
3
2014/15
376
14
26.86
32
1
2015/16
344
14
24.57
31
2
2016/17
363
14
25.93
29
0
2017/18
334
14
23.86
30
1
2019/20
343
15
22.87
30
1
2020/21
342
15
22.80
29
0
2021/22
308
14
22.00
29
0
2022/23
340
14
24.29
29
0
2023/24
319
13
24.54
28
0
2024/25
304
13
23.38
28
0
2025/26
306
13
23.54
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 334 in 2017/18 → 379, +45 pupils.
Biggest loss in a single year: 1975/76: 504 in 1974/75 → 442, -62 pupils.
Largest single-class increase: 6th Class in 2022/23 (55 → 87, +32).
Largest single-class decrease: 2nd Class in 2023/24 (71 → 38, -33).
Largest cohort-step gain: 5th → 6th in 2025/26 (53 → 65, +12).
Largest cohort-step loss: 5th → 6th in 2024/25 (79 → 75, -4).
Overall: 504 (1974/75) → 306 (2025/26), -198.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
38
71
55.7
6
3rd Class
42
75
58.5
6
4th Class
50
83
64.2
6
5th Class
53
86
68.7
6
6th Class
55
87
72.8
6
Total
301
504
350.9
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).