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
21.75
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+
2006/07
194
7
27.71
33
1
2007/08
231
9
25.67
35
2
2008/09
239
9
26.56
34
1
2009/10
277
11
25.18
29
0
2010/11
274
11
24.91
28
0
2011/12
299
11
27.18
35
1
2012/13
305
12
25.42
28
0
2013/14
324
13
24.92
28
0
2014/15
375
14
26.79
30
3
2015/16
383
15
25.53
30
1
2016/17
410
16
25.62
30
3
2017/18
402
16
25.12
30
3
2019/20
430
17
25.29
33
4
2020/21
398
17
23.41
32
1
2021/22
375
17
22.06
31
1
2022/23
365
16
22.81
31
1
2023/24
373
16
23.31
29
0
2024/25
361
16
22.56
30
2
2025/26
348
16
21.75
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 348 in 2013/14 → 396, +48 pupils.
Biggest loss in a single year: 2020/21: 458 in 2019/20 → 428, -30 pupils.
Largest single-class increase: 4th Class in 2023/24 (39 → 58, +19).
Largest single-class decrease: Senior Infants in 2024/25 (49 → 32, -17).
Largest cohort-step gain: SI → 1st in 2023/24 (34 → 43, +9).
Largest cohort-step loss: 1st → 2nd in 2024/25 (43 → 38, -5).
Overall: 109 (1975/76) → 378 (2025/26), 269.
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
30
45
38.0
6
Senior Infants
32
49
42.0
6
1st Class
37
51
45.3
6
2nd Class
38
56
47.3
6
3rd Class
41
53
46.2
6
4th Class
39
61
50.3
6
5th Class
44
60
53.3
6
6th Class
44
60
54.2
6
Total
82
458
234.8
41
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).