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
17.25
2025/26
Mainstream classes
20
2025/26
Largest class group
23
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+
2016/17
384
20
19.20
25
0
2017/18
382
21
18.19
25
0
2019/20
412
19
21.68
27
0
2020/21
385
22
17.50
23
0
2021/22
379
20
18.95
23
0
2022/23
379
20
18.95
24
0
2023/24
371
21
17.67
21
0
2024/25
355
21
16.90
21
0
2025/26
345
20
17.25
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2019/20: 395 in 2018/19 → 412, +17 pupils.
Biggest loss in a single year: 2020/21: 412 in 2019/20 → 385, -27 pupils.
Largest single-class increase: 5th Class in 2021/22 (40 → 62, +22).
Largest single-class decrease: 3rd Class in 2021/22 (59 → 41, -18).
Largest cohort-step gain: 2nd → 3rd in 2021/22 (37 → 41, +4).
Largest cohort-step loss: JI → SI in 2025/26 (44 → 40, -4).
Overall: 384 (2016/17) → 356 (2025/26), -28.
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
38
52
43.5
6
Senior Infants
39
52
44.5
6
1st Class
37
51
44.2
6
2nd Class
37
52
43.0
6
3rd Class
41
59
48.2
6
4th Class
42
61
51.8
6
5th Class
40
62
48.5
6
6th Class
39
60
49.2
6
Total
356
412
381.0
10
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).