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
19.75
2025/26
Mainstream classes
16
2025/26
Largest class group
25
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
237
9
26.33
35
3
2017/18
246
9
27.33
35
4
2019/20
264
10
26.40
36
4
2020/21
292
11
26.55
35
5
2021/22
293
12
24.42
35
4
2022/23
311
16
19.44
26
0
2023/24
308
16
19.25
26
0
2024/25
308
16
19.25
26
0
2025/26
316
16
19.75
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2020/21: 276 in 2019/20 → 301, +25 pupils.
Biggest loss in a single year: 2023/24: 323 in 2022/23 → 318, -5 pupils.
Largest single-class increase: 3rd Class in 2022/23 (32 → 51, +19).
Largest single-class decrease: 3rd Class in 2023/24 (51 → 32, -19).
Largest cohort-step gain: 3rd → 4th in 2024/25 (32 → 37, +5).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (37 → 33, -4).
Overall: 237 (2016/17) → 328 (2025/26), 91.
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
32
45
37.8
6
Senior Infants
32
44
36.7
6
1st Class
31
46
38.3
6
2nd Class
30
48
38.2
6
3rd Class
32
51
37.8
6
4th Class
32
51
38.0
6
5th Class
33
51
39.5
6
6th Class
35
49
40.3
6
Total
237
328
292.9
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).