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
26.81
2025/26
Mainstream classes
16
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2007/08
20
2
10.00
10
0
2008/09
35
2
17.50
18
0
2009/10
43
2
21.50
24
0
2010/11
65
3
21.67
27
0
2011/12
88
4
22.00
28
0
2012/13
109
4
27.25
34
2
2013/14
137
5
27.40
35
2
2014/15
172
6
28.67
32
2
2015/16
196
7
28.00
31
3
2016/17
223
8
27.88
33
4
2017/18
234
8
29.25
33
4
2019/20
289
10
28.90
33
5
2020/21
336
12
28.00
35
5
2021/22
368
14
26.29
34
3
2022/23
412
16
25.75
32
6
2023/24
417
16
26.06
31
3
2024/25
421
16
26.31
30
1
2025/26
429
16
26.81
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 374 in 2021/22 → 424, +50 pupils.
Largest single-class increase: 2nd Class in 2021/22 (36 → 52, +16).
Largest single-class decrease: Senior Infants in 2023/24 (56 → 50, -6).
Largest cohort-step gain: 4th → 5th in 2022/23 (35 → 44, +9).
Largest cohort-step loss: JI → SI in 2023/24 (54 → 50, -4).
Overall: 20 (2007/08) → 441 (2025/26), 421.
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
49
59
53.3
6
Senior Infants
50
59
54.5
6
1st Class
52
60
54.7
6
2nd Class
36
62
52.2
6
3rd Class
33
61
52.0
6
4th Class
35
59
48.0
6
5th Class
33
57
45.0
6
6th Class
29
57
39.5
6
Total
20
441
226.6
19
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).