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
24.24
2025/26
Mainstream classes
17
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
132
6
22.00
29
0
2007/08
166
7
23.71
31
1
2008/09
189
7
27.00
31
1
2009/10
198
7
28.29
30
3
2010/11
221
8
27.62
31
3
2011/12
229
8
28.62
31
3
2012/13
231
8
28.88
32
5
2013/14
252
9
28.00
33
5
2014/15
277
10
27.70
34
5
2015/16
311
11
28.27
35
6
2016/17
341
12
28.42
34
7
2017/18
367
14
26.21
34
6
2019/20
424
16
26.50
35
7
2020/21
437
16
27.31
33
5
2021/22
436
18
24.22
32
4
2022/23
444
17
26.12
33
3
2023/24
428
17
25.18
29
0
2024/25
417
17
24.53
29
0
2025/26
412
17
24.24
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 367 in 2017/18 → 405, +38 pupils.
Biggest loss in a single year: 2023/24: 444 in 2022/23 → 428, -16 pupils.
Largest single-class increase: 6th Class in 2022/23 (45 → 63, +18).
Largest single-class decrease: Junior Infants in 2024/25 (56 → 41, -15).
Largest cohort-step gain: 3rd → 4th in 2025/26 (54 → 58, +4).
Largest cohort-step loss: 3rd → 4th in 2021/22 (60 → 56, -4).
Overall: 16 (2001/02) → 412 (2025/26), 396.
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
41
56
51.0
6
Senior Infants
41
58
53.3
6
1st Class
53
60
55.0
6
2nd Class
50
60
54.0
6
3rd Class
48
60
53.8
6
4th Class
48
63
55.7
6
5th Class
45
62
53.0
6
6th Class
45
63
53.2
6
Total
16
444
263.4
25
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).