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
23.54
2025/26
Mainstream classes
13
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2010/11
311
12
25.92
30
1
2011/12
300
12
25.00
34
1
2012/13
291
12
24.25
30
1
2013/14
272
11
24.73
26
0
2014/15
258
10
25.80
35
2
2015/16
255
9
28.33
35
2
2016/17
257
10
25.70
28
0
2017/18
256
10
25.60
29
0
2019/20
261
10
26.10
31
1
2020/21
258
10
25.80
32
2
2021/22
268
11
24.36
27
0
2022/23
305
12
25.42
30
1
2023/24
320
13
24.62
31
2
2024/25
313
14
22.36
31
2
2025/26
306
13
23.54
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 280 in 2021/22 → 317, +37 pupils.
Biggest loss in a single year: 2013/14: 291 in 2012/13 → 272, -19 pupils.
Largest single-class increase: 5th Class in 2022/23 (26 → 58, +32).
Largest single-class decrease: 5th Class in 2023/24 (58 → 29, -29).
Largest cohort-step gain: 1st → 2nd in 2021/22 (35 → 44, +9).
Largest cohort-step loss: SI → 1st in 2021/22 (34 → 32, -2).
Overall: 311 (2010/11) → 318 (2025/26), 7.
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
33.2
6
Senior Infants
23
42
34.3
6
1st Class
27
46
36.5
6
2nd Class
27
49
38.3
6
3rd Class
25
52
40.2
6
4th Class
26
54
37.8
6
5th Class
26
58
38.3
6
6th Class
27
57
38.7
6
Total
255
332
286.6
16
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).