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
18.09
2025/26
Mainstream classes
22
2025/26
Largest class group
20
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+
2015/16
292
13
22.46
29
0
2016/17
318
14
22.71
29
0
2017/18
332
16
20.75
26
0
2019/20
365
18
20.28
23
0
2020/21
388
19
20.42
24
0
2021/22
404
21
19.24
25
0
2022/23
400
21
19.05
23
0
2023/24
396
22
18.00
21
0
2024/25
399
22
18.14
20
0
2025/26
398
22
18.09
20
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 332 in 2017/18 → 363, +31 pupils.
Biggest loss in a single year: 2023/24: 410 in 2022/23 → 408, -2 pupils.
Largest single-class increase: 3rd Class in 2024/25 (38 → 59, +21).
Largest single-class decrease: Junior Infants in 2022/23 (61 → 40, -21).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (51 → 60, +9).
Largest cohort-step loss: JI → SI in 2022/23 (61 → 54, -7).
Overall: 292 (2015/16) → 410 (2025/26), 118.
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
40
61
51.5
6
Senior Infants
38
56
48.8
6
1st Class
40
61
51.2
6
2nd Class
40
58
48.0
6
3rd Class
38
60
52.5
6
4th Class
40
59
50.2
6
5th Class
40
62
49.5
6
6th Class
34
61
48.8
6
Total
292
411
373.4
11
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).