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
23.27
2025/26
Mainstream classes
11
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
245
9
27.22
35
4
2007/08
254
9
28.22
35
4
2008/09
281
10
28.10
35
5
2009/10
283
10
28.30
36
5
2010/11
276
10
27.60
34
3
2011/12
271
10
27.10
34
2
2012/13
270
10
27.00
33
2
2013/14
245
10
24.50
31
2
2014/15
241
9
26.78
32
5
2015/16
249
9
27.67
33
4
2016/17
257
9
28.56
34
4
2017/18
254
10
25.40
34
3
2019/20
263
10
26.30
34
4
2020/21
270
10
27.00
34
4
2021/22
278
10
27.80
34
5
2022/23
271
11
24.64
34
4
2023/24
268
11
24.36
35
3
2024/25
257
11
23.36
34
3
2025/26
256
11
23.27
33
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 188 in 2004/05 → 220, +32 pupils.
Biggest loss in a single year: 2013/14: 270 in 2012/13 → 245, -25 pupils.
Largest single-class increase: Senior Infants in 2025/26 (20 → 34, +14).
Largest single-class decrease: 3rd Class in 2021/22 (43 → 28, -15).
Largest cohort-step gain: JI → SI in 2021/22 (36 → 39, +3).
Largest cohort-step loss: 5th → 6th in 2022/23 (34 → 30, -4).
Overall: 135 (1993/94) → 256 (2025/26), 121.
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
22
36
31.3
6
Senior Infants
20
39
32.3
6
1st Class
20
39
32.3
6
2nd Class
28
40
33.7
6
3rd Class
28
43
35.7
6
4th Class
27
42
35.5
6
5th Class
28
41
34.0
6
6th Class
27
41
31.8
6
Total
122
283
220.5
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).