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
25.23
2025/26
Mainstream classes
13
2025/26
Largest class group
33
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
274
10
27.40
37
3
2007/08
274
10
27.40
37
4
2008/09
301
11
27.36
37
4
2009/10
299
11
27.18
33
4
2010/11
304
12
25.33
34
4
2011/12
299
11
27.18
34
5
2012/13
306
11
27.82
32
6
2013/14
307
11
27.91
33
5
2014/15
286
11
26.00
33
5
2015/16
293
11
26.64
32
4
2016/17
272
11
24.73
31
2
2017/18
268
10
26.80
31
4
2019/20
256
10
25.60
36
3
2020/21
256
10
25.60
32
3
2021/22
281
11
25.55
32
3
2022/23
283
12
23.58
31
2
2023/24
300
12
25.00
33
2
2024/25
307
13
23.62
33
2
2025/26
328
13
25.23
33
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 196 in 1982/83 → 276, +80 pupils.
Biggest loss in a single year: 2014/15: 307 in 2013/14 → 286, -21 pupils.
Largest single-class increase: Junior Infants in 2021/22 (30 → 54, +24).
Largest single-class decrease: Junior Infants in 2022/23 (54 → 37, -17).
Largest cohort-step gain: JI → SI in 2023/24 (37 → 40, +3).
Largest cohort-step loss: JI → SI in 2022/23 (54 → 50, -4).
Overall: 121 (1975/76) → 328 (2025/26), 207.
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
30
54
40.7
6
Senior Infants
31
50
40.8
6
1st Class
29
51
40.2
6
2nd Class
28
49
37.2
6
3rd Class
28
51
35.8
6
4th Class
27
43
33.3
6
5th Class
28
45
33.7
6
6th Class
27
36
30.8
6
Total
121
328
251.9
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).