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
17.88
2025/26
Mainstream classes
16
2025/26
Largest class group
21
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+
2017/18
237
12
19.75
32
1
2019/20
242
12
20.17
33
3
2020/21
258
12
21.50
32
3
2021/22
253
13
19.46
31
2
2022/23
251
13
19.31
29
0
2023/24
273
14
19.50
32
1
2024/25
282
15
18.80
25
0
2025/26
286
16
17.88
21
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2023/24: 268 in 2022/23 → 291, +23 pupils.
Biggest loss in a single year: 2021/22: 270 in 2020/21 → 267, -3 pupils.
Largest single-class increase: 4th Class in 2023/24 (28 → 40, +12).
Largest single-class decrease: 2nd Class in 2025/26 (45 → 34, -11).
Largest cohort-step gain: SI → 1st in 2023/24 (32 → 39, +7).
Largest cohort-step loss: SI → 1st in 2021/22 (39 → 35, -4).
Overall: 237 (2017/18) → 304 (2025/26), 67.
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
29
39
33.7
6
Senior Infants
32
40
35.8
6
1st Class
35
47
38.8
6
2nd Class
31
45
36.8
6
3rd Class
31
44
38.2
6
4th Class
28
40
35.7
6
5th Class
28
39
34.0
6
6th Class
23
36
30.3
6
Total
237
304
271.1
9
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).