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
24.18
2025/26
Mainstream classes
11
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
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
179
7
25.57
35
1
2007/08
188
7
26.86
34
2
2008/09
211
8
26.38
32
1
2009/10
217
8
27.12
34
2
2010/11
242
9
26.89
33
1
2011/12
263
9
29.22
31
4
2012/13
291
11
26.45
32
4
2013/14
300
12
25.00
32
2
2014/15
293
11
26.64
31
3
2015/16
319
12
26.58
30
2
2016/17
323
12
26.92
34
4
2017/18
317
12
26.42
33
2
2019/20
296
12
24.67
29
0
2020/21
282
11
25.64
29
0
2021/22
277
11
25.18
28
0
2022/23
278
11
25.27
31
1
2023/24
280
11
25.45
32
1
2024/25
270
11
24.55
32
2
2025/26
266
11
24.18
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 150 in 2005/06 → 184, +34 pupils.
Biggest loss in a single year: 1993/94: 256 in 1983/84 → 194, -62 pupils.
Largest single-class increase: 2nd Class in 2024/25 (17 → 32, +15).
Largest single-class decrease: 2nd Class in 2023/24 (31 → 17, -14).
Largest cohort-step gain: SI → 1st in 2021/22 (47 → 54, +7).
Largest cohort-step loss: 1st → 2nd in 2021/22 (51 → 20, -31).
Overall: 203 (1974/75) → 266 (2025/26), 63.
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
37
50
46.0
6
Senior Infants
40
51
47.2
6
1st Class
47
56
51.5
6
2nd Class
17
32
26.0
6
3rd Class
18
32
25.8
6
4th Class
18
31
25.5
6
5th Class
22
32
27.0
6
6th Class
23
29
26.5
6
Total
136
323
227.1
42
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).