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
24.46
2025/26
Mainstream classes
13
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
4
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
314
12
26.17
34
5
2016/17
314
12
26.17
32
2
2017/18
304
12
25.33
33
5
2019/20
290
12
24.17
31
3
2020/21
287
11
26.09
36
4
2021/22
293
11
26.64
35
2
2022/23
280
12
23.33
35
2
2023/24
290
12
24.17
34
2
2024/25
300
12
25.00
34
3
2025/26
318
13
24.46
32
4
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2025/26: 311 in 2024/25 → 330, +19 pupils.
Biggest loss in a single year: 2019/20: 303 in 2018/19 → 290, -13 pupils.
Largest single-class increase: 6th Class in 2021/22 (30 → 45, +15).
Largest single-class decrease: 6th Class in 2022/23 (45 → 29, -16).
Largest cohort-step gain: 3rd → 4th in 2025/26 (41 → 47, +6).
Largest cohort-step loss: 4th → 5th in 2021/22 (31 → 29, -2).
Overall: 314 (2015/16) → 330 (2025/26), 16.
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
36
39
37.7
6
Senior Infants
35
40
37.7
6
1st Class
36
44
39.2
6
2nd Class
34
43
38.5
6
3rd Class
34
45
38.0
6
4th Class
31
47
36.7
6
5th Class
29
44
36.0
6
6th Class
29
45
35.2
6
Total
287
330
303.5
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).