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
22.64
2025/26
Mainstream classes
11
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
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
260
10
26.00
34
3
2017/18
263
10
26.30
34
3
2019/20
279
11
25.36
36
2
2020/21
279
11
25.36
36
2
2021/22
274
11
24.91
36
2
2022/23
273
11
24.82
31
3
2023/24
268
11
24.36
32
2
2024/25
254
11
23.09
32
1
2025/26
249
11
22.64
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 263 in 2017/18 → 275, +12 pupils.
Biggest loss in a single year: 2024/25: 274 in 2023/24 → 260, -14 pupils.
Largest single-class increase: 4th Class in 2024/25 (25 → 42, +17).
Largest single-class decrease: 3rd Class in 2021/22 (47 → 26, -21).
Largest cohort-step gain: 3rd → 4th in 2025/26 (44 → 50, +6).
Largest cohort-step loss: SI → 1st in 2024/25 (32 → 30, -2).
Overall: 260 (2016/17) → 261 (2025/26), 1.
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
22
41
30.5
6
Senior Infants
23
40
33.2
6
1st Class
24
41
31.8
6
2nd Class
26
44
33.3
6
3rd Class
26
47
35.8
6
4th Class
25
50
37.3
6
5th Class
23
47
34.2
6
6th Class
23
47
32.0
6
Total
260
282
271.3
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).