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
24.56
2025/26
Mainstream classes
16
2025/26
Largest class group
35
2025/26
Classes with 30+ pupils
3
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
289
10
28.90
33
3
2007/08
287
11
26.09
30
2
2008/09
278
11
25.27
30
1
2009/10
291
10
29.10
36
5
2010/11
293
11
26.64
32
2
2011/12
310
11
28.18
37
4
2012/13
306
11
27.82
33
5
2013/14
318
12
26.50
31
2
2014/15
313
12
26.08
35
2
2015/16
333
12
27.75
31
3
2016/17
354
14
25.29
29
0
2017/18
360
14
25.71
29
0
2019/20
369
14
26.36
30
1
2020/21
377
14
26.93
30
2
2021/22
377
15
25.13
29
0
2022/23
387
15
25.80
30
2
2023/24
388
16
24.25
31
2
2024/25
375
16
23.44
30
1
2025/26
393
16
24.56
35
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1994/95: 30 in 1993/94 → 64, +34 pupils.
Biggest loss in a single year: 2024/25: 388 in 2023/24 → 375, -13 pupils.
Largest single-class increase: 3rd Class in 2023/24 (37 → 55, +18).
Largest single-class decrease: Junior Infants in 2024/25 (55 → 42, -13).
Largest cohort-step gain: JI → SI in 2023/24 (60 → 61, +1).
Largest cohort-step loss: 4th → 5th in 2021/22 (55 → 50, -5).
Overall: 30 (1993/94) → 393 (2025/26), 363.
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
42
60
53.8
6
Senior Infants
42
61
52.7
6
1st Class
42
59
51.8
6
2nd Class
38
60
49.7
6
3rd Class
37
55
46.2
6
4th Class
36
55
45.2
6
5th Class
35
51
42.8
6
6th Class
35
49
40.7
6
Total
30
393
274.4
33
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).