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
24.15
2025/26
Mainstream classes
13
2025/26
Largest class group
31
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
227
8
28.38
36
3
2007/08
241
8
30.12
38
4
2008/09
246
9
27.33
37
3
2009/10
245
9
27.22
34
4
2010/11
251
9
27.89
34
3
2011/12
262
9
29.11
34
6
2012/13
262
10
26.20
35
3
2013/14
272
10
27.20
34
5
2014/15
264
10
26.40
36
4
2015/16
274
10
27.40
35
3
2016/17
284
10
28.40
36
4
2017/18
285
11
25.91
37
2
2019/20
294
11
26.73
34
3
2020/21
304
11
27.64
31
2
2021/22
287
12
23.92
30
1
2022/23
284
12
23.67
31
3
2023/24
289
12
24.08
33
3
2024/25
308
12
25.67
34
2
2025/26
314
13
24.15
31
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2024/25: 296 in 2023/24 → 318, +22 pupils.
Biggest loss in a single year: 1993/94: 236 in 1982/83 → 201, -35 pupils.
Largest single-class increase: 5th Class in 2025/26 (31 → 47, +16).
Largest single-class decrease: 1st Class in 2022/23 (46 → 32, -14).
Largest cohort-step gain: 1st → 2nd in 2023/24 (32 → 36, +4).
Largest cohort-step loss: 1st → 2nd in 2022/23 (46 → 43, -3).
Overall: 206 (1975/76) → 325 (2025/26), 119.
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
33
46
39.2
6
Senior Infants
34
49
40.7
6
1st Class
31
46
37.3
6
2nd Class
30
49
37.8
6
3rd Class
30
43
35.3
6
4th Class
31
46
36.0
6
5th Class
30
47
36.8
6
6th Class
31
43
36.3
6
Total
197
325
243.2
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).