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
22.19
2025/26
Mainstream classes
16
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
33
2
16.50
20
0
2007/08
51
3
17.00
19
0
2008/09
64
3
21.33
23
0
2009/10
77
3
25.67
36
1
2010/11
101
4
25.25
28
0
2011/12
124
5
24.80
33
1
2012/13
150
6
25.00
34
1
2013/14
188
7
26.86
29
0
2014/15
213
8
26.62
36
2
2015/16
244
9
27.11
32
2
2016/17
272
10
27.20
34
2
2017/18
298
12
24.83
32
1
2019/20
357
14
25.50
31
2
2020/21
382
15
25.47
29
0
2021/22
377
15
25.13
30
2
2022/23
390
16
24.38
27
0
2023/24
368
16
23.00
29
0
2024/25
364
16
22.75
30
1
2025/26
355
16
22.19
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 272 in 2016/17 → 314, +42 pupils.
Biggest loss in a single year: 2023/24: 408 in 2022/23 → 386, -22 pupils.
Largest single-class increase: 5th Class in 2021/22 (37 → 51, +14).
Largest single-class decrease: Junior Infants in 2023/24 (47 → 34, -13).
Largest cohort-step gain: 4th → 5th in 2025/26 (42 → 51, +9).
Largest cohort-step loss: 1st → 2nd in 2023/24 (50 → 45, -5).
Overall: 12 (2004/05) → 373 (2025/26), 361.
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
34
49
41.3
6
Senior Infants
39
50
43.3
6
1st Class
39
53
45.2
6
2nd Class
43
55
48.5
6
3rd Class
46
55
50.3
6
4th Class
42
57
52.0
6
5th Class
37
61
51.3
6
6th Class
38
59
51.5
6
Total
12
408
224.1
22
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).