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
21.13
2025/26
Mainstream classes
15
2025/26
Largest class group
25
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
221
10
22.10
25
0
2007/08
296
13
22.77
32
2
2008/09
355
16
22.19
30
1
2009/10
396
17
23.29
33
2
2010/11
420
16
26.25
33
3
2011/12
461
17
27.12
30
5
2012/13
455
17
26.76
31
2
2013/14
452
17
26.59
30
6
2014/15
444
17
26.12
29
0
2015/16
375
17
22.06
29
0
2016/17
344
15
22.93
26
0
2017/18
333
14
23.79
30
1
2019/20
344
14
24.57
29
0
2020/21
342
15
22.80
27
0
2021/22
317
15
21.13
25
0
2022/23
331
15
22.07
28
0
2023/24
322
15
21.47
26
0
2024/25
318
15
21.20
24
0
2025/26
317
15
21.13
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 241 in 2006/07 → 320, +79 pupils.
Biggest loss in a single year: 2015/16: 460 in 2014/15 → 398, -62 pupils.
Largest single-class increase: 2nd Class in 2025/26 (39 → 57, +18).
Largest single-class decrease: 1st Class in 2025/26 (48 → 33, -15).
Largest cohort-step gain: 1st → 2nd in 2025/26 (48 → 57, +9).
Largest cohort-step loss: SI → 1st in 2021/22 (40 → 36, -4).
Overall: 181 (2000/01) → 352 (2025/26), 171.
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
45
36.5
6
Senior Infants
32
43
37.8
6
1st Class
33
48
39.8
6
2nd Class
37
57
42.7
6
3rd Class
35
47
42.3
6
4th Class
36
47
42.5
6
5th Class
38
48
43.8
6
6th Class
37
51
44.8
6
Total
181
469
338.7
26
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).