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
26.18
2025/26
Mainstream classes
17
2025/26
Largest class group
30
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
288
10
28.80
33
5
2007/08
279
10
27.90
31
5
2008/09
273
10
27.30
31
4
2009/10
273
10
27.30
31
5
2010/11
275
10
27.50
31
5
2011/12
292
10
29.20
31
6
2012/13
289
10
28.90
31
4
2013/14
289
10
28.90
31
6
2014/15
323
11
29.36
31
7
2015/16
351
12
29.25
31
6
2016/17
376
13
28.92
31
6
2017/18
410
14
29.29
30
7
2019/20
441
16
27.56
31
6
2020/21
455
16
28.44
31
6
2021/22
451
17
26.53
31
4
2022/23
446
17
26.24
31
4
2023/24
441
17
25.94
31
4
2024/25
440
17
25.88
31
2
2025/26
445
17
26.18
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 289 in 2013/14 → 323, +34 pupils.
Biggest loss in a single year: 1995/96: 326 in 1994/95 → 308, -18 pupils.
Largest single-class increase: Junior Infants in 2021/22 (48 → 62, +14).
Largest single-class decrease: 2nd Class in 2023/24 (60 → 48, -12).
Largest cohort-step gain: SI → 1st in 2022/23 (48 → 49, +1).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (59 → 55, -4).
Overall: 319 (1993/94) → 445 (2025/26), 126.
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
48
62
56.8
6
Senior Infants
48
62
56.5
6
1st Class
49
62
57.8
6
2nd Class
48
60
57.2
6
3rd Class
47
59
55.0
6
4th Class
46
61
54.5
6
5th Class
51
59
54.8
6
6th Class
49
57
53.7
6
Total
262
455
333.4
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).