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
25.09
2025/26
Mainstream classes
11
2025/26
Largest class group
33
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
334
12
27.83
35
3
2007/08
341
12
28.42
34
2
2008/09
342
13
26.31
32
3
2009/10
358
12
29.83
33
5
2010/11
342
13
26.31
32
5
2011/12
344
13
26.46
33
5
2012/13
354
13
27.23
34
5
2013/14
340
13
26.15
34
5
2014/15
340
13
26.15
34
5
2015/16
341
13
26.23
34
6
2016/17
336
13
25.85
35
4
2017/18
310
13
23.85
36
4
2019/20
314
12
26.17
32
2
2020/21
299
12
24.92
33
3
2021/22
295
12
24.58
31
1
2022/23
290
12
24.17
33
1
2023/24
282
12
23.50
29
0
2024/25
276
12
23.00
28
0
2025/26
276
11
25.09
33
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 226 in 1982/83 → 320, +94 pupils.
Biggest loss in a single year: 2017/18: 336 in 2016/17 → 310, -26 pupils.
Largest single-class increase: 6th Class in 2021/22 (34 → 44, +10).
Largest single-class decrease: Senior Infants in 2024/25 (40 → 28, -12).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (36 → 38, +2).
Largest cohort-step loss: JI → SI in 2021/22 (40 → 38, -2).
Overall: 138 (1975/76) → 276 (2025/26), 138.
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
27
40
34.5
6
Senior Infants
28
40
35.7
6
1st Class
28
38
34.3
6
2nd Class
31
39
35.7
6
3rd Class
29
41
35.5
6
4th Class
30
40
35.7
6
5th Class
32
45
37.5
6
6th Class
33
44
37.5
6
Total
138
358
284.0
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).