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
22.00
2025/26
Mainstream classes
11
2025/26
Largest class group
27
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
244
8
30.50
34
5
2007/08
264
9
29.33
36
4
2008/09
264
10
26.40
34
3
2009/10
270
10
27.00
35
2
2010/11
266
10
26.60
34
2
2011/12
290
10
29.00
38
5
2012/13
301
11
27.36
35
4
2013/14
303
11
27.55
39
3
2014/15
313
11
28.45
35
4
2015/16
332
12
27.67
34
2
2016/17
325
12
27.08
34
2
2017/18
323
12
26.92
33
2
2019/20
320
13
24.62
30
2
2020/21
329
13
25.31
30
2
2021/22
314
13
24.15
28
0
2022/23
300
13
23.08
28
0
2023/24
275
13
21.15
28
0
2024/25
259
12
21.58
27
0
2025/26
242
11
22.00
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 199 in 1983/84 → 242, +43 pupils.
Biggest loss in a single year: 2023/24: 312 in 2022/23 → 287, -25 pupils.
Largest single-class increase: Junior Infants in 2022/23 (27 → 38, +11).
Largest single-class decrease: Junior Infants in 2021/22 (44 → 27, -17).
Largest cohort-step gain: 4th → 5th in 2025/26 (32 → 38, +6).
Largest cohort-step loss: JI → SI in 2023/24 (38 → 34, -4).
Overall: 160 (1974/75) → 254 (2025/26), 94.
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
17
44
29.3
6
Senior Infants
24
42
31.8
6
1st Class
27
40
34.0
6
2nd Class
27
41
36.2
6
3rd Class
28
41
35.3
6
4th Class
32
49
39.7
6
5th Class
37
48
40.8
6
6th Class
38
46
41.5
6
Total
160
341
247.4
43
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).