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
21.94
2025/26
Mainstream classes
16
2025/26
Largest class group
26
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+
2006/07
73
3
24.33
30
1
2007/08
126
5
25.20
29
0
2008/09
181
7
25.86
29
0
2009/10
241
9
26.78
32
3
2010/11
262
10
26.20
32
2
2011/12
314
12
26.17
33
3
2012/13
339
13
26.08
32
2
2013/14
358
14
25.57
32
2
2014/15
394
15
26.27
32
3
2015/16
419
16
26.19
31
3
2016/17
406
16
25.38
29
0
2017/18
422
16
26.38
28
0
2019/20
398
16
24.88
27
0
2020/21
383
16
23.94
27
0
2021/22
380
16
23.75
28
0
2022/23
375
16
23.44
27
0
2023/24
365
16
22.81
27
0
2024/25
355
16
22.19
27
0
2025/26
351
16
21.94
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2009/10: 183 in 2008/09 → 245, +62 pupils.
Biggest loss in a single year: 2020/21: 416 in 2019/20 → 401, -15 pupils.
Largest single-class increase: Junior Infants in 2025/26 (32 → 44, +12).
Largest single-class decrease: 2nd Class in 2022/23 (54 → 42, -12).
Largest cohort-step gain: 1st → 2nd in 2021/22 (45 → 54, +9).
Largest cohort-step loss: 4th → 5th in 2024/25 (51 → 48, -3).
Overall: 26 (2005/06) → 369 (2025/26), 343.
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
44
37.8
6
Senior Infants
35
45
39.3
6
1st Class
36
47
43.2
6
2nd Class
42
54
48.3
6
3rd Class
44
54
49.8
6
4th Class
47
54
50.8
6
5th Class
48
54
51.3
6
6th Class
49
53
50.5
6
Total
26
440
326.2
21
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).