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
24.23
2025/26
Mainstream classes
13
2025/26
Largest class group
27
2025/26
Classes with 30+ pupils
0
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
202
8
25.25
28
0
2007/08
198
8
24.75
29
0
2008/09
200
8
25.00
30
2
2009/10
202
8
25.25
30
1
2010/11
207
8
25.88
30
1
2011/12
214
8
26.75
30
1
2012/13
212
8
26.50
29
0
2013/14
218
8
27.25
30
1
2014/15
215
8
26.88
30
1
2015/16
212
8
26.50
29
0
2016/17
213
8
26.62
30
2
2017/18
210
8
26.25
30
3
2019/20
210
8
26.25
30
2
2020/21
208
8
26.00
30
1
2021/22
229
9
25.44
30
1
2022/23
236
9
26.22
30
1
2023/24
263
11
23.91
30
1
2024/25
291
12
24.25
28
0
2025/26
315
13
24.23
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 197 in 1999/00 → 241, +44 pupils.
Biggest loss in a single year: 2002/03: 230 in 2001/02 → 218, -12 pupils.
Largest single-class increase: Junior Infants in 2023/24 (29 → 55, +26).
Largest single-class decrease: 2nd Class in 2025/26 (49 → 27, -22).
Largest cohort-step gain: JI → SI in 2022/23 (46 → 48, +2).
Largest cohort-step loss: SI → 1st in 2025/26 (54 → 52, -2).
Overall: 45 (1994/95) → 315 (2025/26), 270.
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
29
55
44.0
6
Senior Infants
28
54
39.7
6
1st Class
23
52
34.7
6
2nd Class
23
49
30.7
6
3rd Class
23
48
30.3
6
4th Class
22
31
26.2
6
5th Class
23
29
26.0
6
6th Class
23
28
25.5
6
Total
45
315
203.6
32
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).