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
21.00
2025/26
Mainstream classes
14
2025/26
Largest class group
28
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
34
2
17.00
24
0
2007/08
65
3
21.67
29
0
2008/09
113
5
22.60
29
0
2009/10
171
7
24.43
30
1
2010/11
238
9
26.44
32
3
2011/12
291
11
26.45
33
4
2012/13
348
13
26.77
33
5
2013/14
401
15
26.73
34
6
2014/15
434
16
27.12
34
6
2015/16
461
16
28.81
34
10
2016/17
470
16
29.38
34
10
2017/18
469
16
29.31
34
10
2019/20
460
16
28.75
34
7
2020/21
439
16
27.44
33
5
2021/22
420
16
26.25
32
4
2022/23
391
16
24.44
31
2
2023/24
357
16
22.31
28
0
2024/25
326
15
21.73
28
0
2025/26
294
14
21.00
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 171 in 2009/10 → 238, +67 pupils.
Biggest loss in a single year: 2023/24: 401 in 2022/23 → 367, -34 pupils.
Largest single-class increase: 1st Class in 2021/22 (52 → 55, +3).
Largest single-class decrease: 1st Class in 2022/23 (55 → 42, -13).
Largest cohort-step gain: 3rd → 4th in 2025/26 (42 → 44, +2).
Largest cohort-step loss: 1st → 2nd in 2024/25 (41 → 39, -2).
Overall: 34 (2006/07) → 306 (2025/26), 272.
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
24
43
33.8
6
Senior Infants
23
54
38.5
6
1st Class
30
55
43.0
6
2nd Class
39
55
46.8
6
3rd Class
39
53
48.2
6
4th Class
44
61
52.3
6
5th Class
50
64
55.0
6
6th Class
50
63
56.3
6
Total
34
488
338.1
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).