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
22.12
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
207
8
25.88
32
2
2007/08
242
10
24.20
32
1
2008/09
267
11
24.27
31
1
2009/10
263
11
23.91
32
2
2010/11
259
11
23.55
30
1
2011/12
308
12
25.67
30
3
2012/13
336
13
25.85
32
4
2013/14
362
14
25.86
33
3
2014/15
371
14
26.50
32
4
2015/16
366
15
24.40
30
2
2016/17
371
15
24.73
31
2
2017/18
388
16
24.25
30
1
2019/20
390
16
24.38
29
0
2020/21
391
16
24.44
29
0
2021/22
377
16
23.56
28
0
2022/23
373
16
23.31
27
0
2023/24
374
16
23.38
27
0
2024/25
361
16
22.56
26
0
2025/26
354
16
22.12
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1977/78: 53 in 1976/77 → 275, +222 pupils.
Biggest loss in a single year: 1993/94: 552 in 1983/84 → 463, -89 pupils.
Largest single-class increase: 4th Class in 2021/22 (43 → 55, +12).
Largest single-class decrease: 6th Class in 2021/22 (56 → 43, -13).
Largest cohort-step gain: 1st → 2nd in 2025/26 (43 → 50, +7).
Largest cohort-step loss: JI → SI in 2022/23 (47 → 42, -5).
Overall: 53 (1976/77) → 372 (2025/26), 319.
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
33
47
41.2
6
Senior Infants
36
50
42.0
6
1st Class
38
52
45.7
6
2nd Class
47
50
48.8
6
3rd Class
48
53
50.0
6
4th Class
43
55
49.2
6
5th Class
42
54
48.3
6
6th Class
43
56
50.2
6
Total
53
556
352.5
41
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).