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
23.17
2025/26
Mainstream classes
12
2025/26
Largest class group
29
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
300
11
27.27
37
4
2007/08
308
12
25.67
37
2
2008/09
303
12
25.25
37
3
2009/10
312
12
26.00
37
2
2010/11
307
12
25.58
33
3
2011/12
298
12
24.83
33
1
2012/13
291
11
26.45
37
3
2013/14
299
11
27.18
38
3
2014/15
290
11
26.36
35
5
2015/16
288
11
26.18
37
1
2016/17
315
12
26.25
34
3
2017/18
321
12
26.75
33
3
2019/20
310
12
25.83
36
4
2020/21
306
12
25.50
29
0
2021/22
305
12
25.42
31
3
2022/23
306
12
25.50
32
2
2023/24
323
13
24.85
30
1
2024/25
296
13
22.77
26
0
2025/26
278
12
23.17
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 288 in 2015/16 → 315, +27 pupils.
Biggest loss in a single year: 2024/25: 326 in 2023/24 → 301, -25 pupils.
Largest single-class increase: 5th Class in 2022/23 (37 → 53, +16).
Largest single-class decrease: 4th Class in 2022/23 (49 → 41, -8).
Largest cohort-step gain: 3rd → 4th in 2023/24 (35 → 43, +8).
Largest cohort-step loss: 1st → 2nd in 2024/25 (41 → 37, -4).
Overall: 230 (1998/99) → 284 (2025/26), 54.
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
29
37
32.8
6
Senior Infants
30
41
34.5
6
1st Class
31
41
35.2
6
2nd Class
33
40
35.8
6
3rd Class
33
48
39.2
6
4th Class
31
49
39.3
6
5th Class
37
53
43.2
6
6th Class
38
52
43.3
6
Total
230
326
290.9
28
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).