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
23.82
2025/26
Mainstream classes
11
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
3
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
254
9
28.22
37
4
2007/08
267
10
26.70
32
2
2008/09
276
10
27.60
39
2
2009/10
281
10
28.10
39
4
2010/11
268
10
26.80
39
3
2011/12
281
10
28.10
39
5
2012/13
273
10
27.30
33
5
2013/14
278
10
27.80
40
4
2014/15
265
10
26.50
34
3
2015/16
260
10
26.00
32
6
2016/17
284
11
25.82
34
4
2017/18
277
11
25.18
36
4
2019/20
286
11
26.00
36
3
2020/21
289
11
26.27
35
3
2021/22
279
12
23.25
32
2
2022/23
292
11
26.55
33
2
2023/24
291
12
24.25
34
2
2024/25
266
12
22.17
33
2
2025/26
262
11
23.82
34
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 99 in 1982/83 → 145, +46 pupils.
Biggest loss in a single year: 2024/25: 291 in 2023/24 → 266, -25 pupils.
Largest single-class increase: 5th Class in 2022/23 (32 → 53, +21).
Largest single-class decrease: 6th Class in 2024/25 (54 → 28, -26).
Largest cohort-step gain: SI → 1st in 2022/23 (33 → 37, +4).
Largest cohort-step loss: 4th → 5th in 2021/22 (35 → 32, -3).
Overall: 59 (1975/76) → 262 (2025/26), 203.
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
25
32
29.8
6
Senior Infants
29
34
31.3
6
1st Class
29
46
34.7
6
2nd Class
28
45
34.3
6
3rd Class
27
50
37.3
6
4th Class
27
49
37.5
6
5th Class
28
53
37.2
6
6th Class
28
54
37.7
6
Total
59
293
199.4
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).