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
24.38
2025/26
Mainstream classes
13
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
3
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
267
9
29.67
38
4
2007/08
277
11
25.18
30
1
2008/09
295
10
29.50
32
7
2009/10
299
11
27.18
31
3
2010/11
304
11
27.64
33
2
2011/12
322
11
29.27
35
7
2012/13
336
12
28.00
31
4
2013/14
346
12
28.83
33
6
2014/15
340
13
26.15
32
2
2015/16
347
13
26.69
33
2
2016/17
359
13
27.62
30
5
2017/18
374
14
26.71
36
3
2019/20
363
15
24.20
29
0
2020/21
342
14
24.43
29
0
2021/22
332
14
23.71
29
0
2022/23
326
14
23.29
30
1
2023/24
330
14
23.57
31
1
2024/25
324
14
23.14
31
1
2025/26
317
13
24.38
34
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 239 in 2005/06 → 269, +30 pupils.
Biggest loss in a single year: 2020/21: 363 in 2019/20 → 342, -21 pupils.
Largest single-class increase: 1st Class in 2023/24 (28 → 51, +23).
Largest single-class decrease: 6th Class in 2021/22 (56 → 36, -20).
Largest cohort-step gain: SI → 1st in 2023/24 (46 → 51, +5).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (51 → 48, -3).
Overall: 273 (1993/94) → 317 (2025/26), 44.
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
29
48
37.7
6
Senior Infants
29
46
36.2
6
1st Class
28
51
38.8
6
2nd Class
29
53
41.0
6
3rd Class
29
53
43.0
6
4th Class
30
52
41.5
6
5th Class
36
51
43.2
6
6th Class
36
56
47.2
6
Total
239
382
299.9
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).