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
22.50
2025/26
Mainstream classes
10
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+
2008/09
24
2
12.00
17
0
2009/10
52
3
17.33
26
0
2010/11
87
4
21.75
28
0
2011/12
122
5
24.40
33
1
2012/13
190
7
27.14
33
3
2013/14
253
9
28.11
33
5
2014/15
312
11
28.36
33
7
2015/16
365
13
28.08
33
9
2016/17
403
15
26.87
33
8
2017/18
427
16
26.69
33
8
2019/20
435
16
27.19
32
4
2020/21
385
15
25.67
31
3
2021/22
354
14
25.29
32
3
2022/23
320
13
24.62
31
2
2023/24
280
12
23.33
30
1
2024/25
254
9
28.22
36
2
2025/26
225
10
22.50
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 122 in 2011/12 → 190, +68 pupils.
Biggest loss in a single year: 2020/21: 435 in 2019/20 → 385, -50 pupils.
Largest single-class increase: 3rd Class in 2021/22 (50 → 61, +11).
Largest single-class decrease: 4th Class in 2023/24 (58 → 38, -20).
Largest cohort-step gain: JI → SI in 2023/24 (26 → 28, +2).
Largest cohort-step loss: 5th → 6th in 2021/22 (57 → 50, -7).
Overall: 24 (2008/09) → 227 (2025/26), 203.
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
31
26.7
6
Senior Infants
25
44
30.5
6
1st Class
25
41
31.7
6
2nd Class
25
61
37.5
6
3rd Class
25
61
40.7
6
4th Class
27
58
44.2
6
5th Class
35
57
46.7
6
6th Class
36
53
45.5
6
Total
24
443
274.2
18
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).