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
19.81
2025/26
Mainstream classes
16
2025/26
Largest class group
24
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
263
13
20.23
25
0
2007/08
270
12
22.50
27
0
2008/09
276
12
23.00
27
0
2009/10
278
13
21.38
27
0
2010/11
268
13
20.62
26
0
2011/12
279
12
23.25
28
0
2012/13
277
12
23.08
28
0
2013/14
284
12
23.67
30
1
2014/15
302
13
23.23
30
2
2015/16
305
13
23.46
31
1
2016/17
304
14
21.71
34
1
2017/18
307
14
21.93
28
0
2019/20
299
14
21.36
32
1
2020/21
297
14
21.21
31
1
2021/22
300
14
21.43
32
1
2022/23
321
16
20.06
25
0
2023/24
331
16
20.69
24
0
2024/25
325
16
20.31
24
0
2025/26
317
16
19.81
24
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 289 in 2013/14 → 308, +19 pupils.
Biggest loss in a single year: 2006/07: 291 in 2005/06 → 275, -16 pupils.
Largest single-class increase: 6th Class in 2021/22 (33 → 49, +16).
Largest single-class decrease: Senior Infants in 2024/25 (50 → 34, -16).
Largest cohort-step gain: 1st → 2nd in 2022/23 (29 → 36, +7).
Largest cohort-step loss: JI → SI in 2024/25 (38 → 34, -4).
Overall: 332 (1996/97) → 329 (2025/26), -3.
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
38
50
40.8
6
Senior Infants
33
50
40.3
6
1st Class
29
48
38.5
6
2nd Class
32
48
41.2
6
3rd Class
35
46
39.5
6
4th Class
32
44
37.7
6
5th Class
33
48
40.3
6
6th Class
33
49
39.7
6
Total
274
343
304.8
30
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).