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
19.69
2025/26
Mainstream classes
13
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
1
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
198
7
28.29
34
3
2008/09
200
8
25.00
28
0
2009/10
210
8
26.25
35
2
2010/11
213
8
26.62
31
2
2011/12
226
8
28.25
34
4
2012/13
230
8
28.75
33
4
2013/14
232
8
29.00
34
3
2014/15
246
9
27.33
33
4
2015/16
278
9
30.89
35
6
2016/17
281
10
28.10
35
6
2017/18
284
11
25.82
36
3
2019/20
282
11
25.64
35
3
2020/21
289
11
26.27
35
2
2021/22
278
11
25.27
30
1
2022/23
268
11
24.36
33
2
2023/24
252
11
22.91
29
0
2024/25
249
11
22.64
29
0
2025/26
256
13
19.69
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 246 in 2014/15 → 278, +32 pupils.
Biggest loss in a single year: 2023/24: 274 in 2022/23 → 258, -16 pupils.
Largest single-class increase: 2nd Class in 2022/23 (29 → 47, +18).
Largest single-class decrease: 5th Class in 2022/23 (43 → 24, -19).
Largest cohort-step gain: 1st → 2nd in 2023/24 (34 → 38, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (33 → 28, -5).
Overall: 198 (2002/03) → 268 (2025/26), 70.
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
24
36
29.5
6
Senior Infants
29
47
35.0
6
1st Class
28
48
34.3
6
2nd Class
27
47
33.5
6
3rd Class
25
47
33.3
6
4th Class
26
47
35.0
6
5th Class
24
48
35.5
6
6th Class
22
43
33.2
6
Total
194
295
243.6
24
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).