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
24.31
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
107
5
21.40
29
0
2007/08
135
6
22.50
30
1
2008/09
167
7
23.86
35
1
2009/10
198
8
24.75
36
2
2010/11
231
8
28.88
37
4
2011/12
250
8
31.25
37
6
2012/13
246
9
27.33
34
4
2013/14
265
9
29.44
35
4
2014/15
262
10
26.20
31
3
2015/16
284
11
25.82
30
1
2016/17
299
12
24.92
29
0
2017/18
320
13
24.62
30
1
2019/20
333
14
23.79
28
0
2020/21
358
15
23.87
29
0
2021/22
357
15
23.80
29
0
2022/23
387
16
24.19
29
0
2023/24
384
16
24.00
29
0
2024/25
394
16
24.62
30
1
2025/26
389
16
24.31
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 198 in 2009/10 → 231, +33 pupils.
Biggest loss in a single year: 2025/26: 394 in 2024/25 → 389, -5 pupils.
Largest single-class increase: 5th Class in 2021/22 (25 → 52, +27).
Largest single-class decrease: 6th Class in 2021/22 (45 → 26, -19).
Largest cohort-step gain: 1st → 2nd in 2022/23 (48 → 51, +3).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (56 → 53, -3).
Overall: 21 (2003/04) → 389 (2025/26), 368.
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
47
58
51.8
6
Senior Infants
46
58
52.3
6
1st Class
39
58
48.8
6
2nd Class
38
56
48.3
6
3rd Class
37
53
46.2
6
4th Class
37
53
46.7
6
5th Class
25
52
42.3
6
6th Class
26
50
41.7
6
Total
21
394
254.2
23
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).