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
24.73
2025/26
Mainstream classes
15
2025/26
Largest class group
31
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+
2006/07
291
11
26.45
31
3
2007/08
314
11
28.55
34
6
2008/09
319
12
26.58
33
2
2009/10
320
12
26.67
32
1
2010/11
316
12
26.33
33
2
2011/12
314
12
26.17
30
2
2012/13
330
12
27.50
32
3
2013/14
332
12
27.67
30
3
2014/15
343
12
28.58
32
5
2015/16
353
13
27.15
32
2
2016/17
360
13
27.69
33
7
2017/18
370
14
26.43
30
3
2019/20
358
14
25.57
30
1
2020/21
366
14
26.14
33
2
2021/22
372
15
24.80
28
0
2022/23
349
15
23.27
31
1
2023/24
356
15
23.73
31
2
2024/25
376
15
25.07
31
1
2025/26
371
15
24.73
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2024/25: 356 in 2023/24 → 382, +26 pupils.
Biggest loss in a single year: 1993/94: 343 in 1983/84 → 301, -42 pupils.
Largest single-class increase: Junior Infants in 2023/24 (55 → 74, +19).
Largest single-class decrease: Senior Infants in 2023/24 (77 → 54, -23).
Largest cohort-step gain: 1st → 2nd in 2025/26 (34 → 38, +4).
Largest cohort-step loss: SI → 1st in 2025/26 (70 → 26, -44).
Overall: 324 (1974/75) → 377 (2025/26), 53.
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
55
78
73.2
6
Senior Infants
54
82
72.7
6
1st Class
26
42
34.7
6
2nd Class
30
41
37.7
6
3rd Class
27
43
36.2
6
4th Class
29
43
36.5
6
5th Class
29
45
38.5
6
6th Class
30
44
36.7
6
Total
274
382
323.6
43
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).