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
22.73
2025/26
Mainstream classes
11
2025/26
Largest class group
33
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+
2012/13
265
11
24.09
35
4
2013/14
268
11
24.36
35
4
2014/15
269
10
26.90
35
5
2015/16
269
10
26.90
37
4
2016/17
264
10
26.40
36
4
2017/18
261
10
26.10
34
3
2019/20
263
10
26.30
32
3
2020/21
267
12
22.25
32
2
2021/22
260
11
23.64
33
3
2022/23
265
11
24.09
33
5
2023/24
255
11
23.18
32
4
2024/25
252
11
22.91
32
4
2025/26
250
11
22.73
33
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2019/20: 263 in 2018/19 → 278, +15 pupils.
Biggest loss in a single year: 2021/22: 280 in 2020/21 → 271, -9 pupils.
Largest single-class increase: 5th Class in 2025/26 (31 → 44, +13).
Largest single-class decrease: 2nd Class in 2023/24 (42 → 31, -11).
Largest cohort-step gain: 1st → 2nd in 2022/23 (34 → 42, +8).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (37 → 33, -4).
Overall: 269 (2012/13) → 265 (2025/26), -4.
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
25
33
29.5
6
Senior Infants
26
35
30.7
6
1st Class
28
35
31.2
6
2nd Class
29
42
33.5
6
3rd Class
24
42
32.3
6
4th Class
27
39
32.8
6
5th Class
30
44
34.8
6
6th Class
30
47
35.8
6
Total
263
280
271.3
14
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).