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
21.80
2025/26
Mainstream classes
15
2025/26
Largest class group
26
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
127
6
21.17
24
0
2007/08
142
6
23.67
25
0
2008/09
170
6
28.33
32
2
2009/10
189
7
27.00
29
0
2010/11
193
7
27.57
31
3
2011/12
216
8
27.00
29
0
2012/13
233
9
25.89
32
2
2013/14
240
9
26.67
29
0
2014/15
263
10
26.30
32
2
2015/16
287
11
26.09
31
1
2016/17
321
12
26.75
30
2
2017/18
351
12
29.25
35
6
2019/20
369
14
26.36
34
1
2020/21
368
14
26.29
33
3
2021/22
361
15
24.07
31
2
2022/23
355
15
23.67
32
3
2023/24
365
15
24.33
34
3
2024/25
356
15
23.73
34
2
2025/26
327
15
21.80
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 287 in 2015/16 → 321, +34 pupils.
Biggest loss in a single year: 2025/26: 358 in 2024/25 → 337, -21 pupils.
Largest single-class increase: 5th Class in 2023/24 (52 → 66, +14).
Largest single-class decrease: 2nd Class in 2021/22 (62 → 32, -30).
Largest cohort-step gain: JI → SI in 2023/24 (34 → 42, +8).
Largest cohort-step loss: 4th → 5th in 2025/26 (48 → 45, -3).
Overall: 130 (2006/07) → 337 (2025/26), 207.
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
30
43
35.8
6
Senior Infants
32
44
39.3
6
1st Class
33
45
41.0
6
2nd Class
32
62
45.5
6
3rd Class
33
60
47.0
6
4th Class
35
62
48.3
6
5th Class
36
66
49.7
6
6th Class
43
67
51.8
6
Total
130
369
280.9
20
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).