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
22.27
2025/26
Mainstream classes
11
2025/26
Largest class group
31
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
318
11
28.91
33
5
2007/08
325
12
27.08
34
3
2008/09
319
12
26.58
34
3
2009/10
343
13
26.38
31
2
2010/11
341
13
26.23
33
2
2011/12
335
13
25.77
33
3
2012/13
346
13
26.62
31
4
2013/14
336
13
25.85
33
4
2014/15
352
13
27.08
36
4
2015/16
360
14
25.71
33
3
2016/17
346
14
24.71
33
2
2017/18
311
14
22.21
31
1
2019/20
295
13
22.69
32
2
2020/21
295
12
24.58
29
0
2021/22
275
12
22.92
30
1
2022/23
258
11
23.45
31
1
2023/24
248
11
22.55
30
2
2024/25
237
11
21.55
31
1
2025/26
245
11
22.27
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2009/10: 324 in 2008/09 → 354, +30 pupils.
Biggest loss in a single year: 2017/18: 364 in 2016/17 → 329, -35 pupils.
Largest single-class increase: 1st Class in 2025/26 (22 → 41, +19).
Largest single-class decrease: Junior Infants in 2022/23 (38 → 20, -18).
Largest cohort-step gain: JI → SI in 2025/26 (29 → 36, +7).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (30 → 27, -3).
Overall: 256 (1993/94) → 269 (2025/26), 13.
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
20
38
29.5
6
Senior Infants
24
37
31.2
6
1st Class
22
41
30.2
6
2nd Class
26
38
29.8
6
3rd Class
26
43
32.2
6
4th Class
28
50
34.0
6
5th Class
27
50
37.0
6
6th Class
26
56
40.2
6
Total
237
378
306.0
33
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).