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
20.10
2025/26
Mainstream classes
10
2025/26
Largest class group
26
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
209
10
20.90
26
0
2007/08
210
10
21.00
28
0
2008/09
215
10
21.50
27
0
2009/10
224
10
22.40
28
0
2010/11
219
11
19.91
24
0
2011/12
215
10
21.50
25
0
2012/13
216
10
21.60
26
0
2013/14
219
10
21.90
28
0
2014/15
231
10
23.10
29
0
2015/16
221
10
22.10
27
0
2016/17
223
10
22.30
27
0
2017/18
225
10
22.50
27
0
2019/20
208
10
20.80
25
0
2020/21
208
10
20.80
25
0
2021/22
211
10
21.10
25
0
2022/23
206
10
20.60
28
0
2023/24
207
10
20.70
27
0
2024/25
208
10
20.80
26
0
2025/26
201
10
20.10
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 219 in 2013/14 → 231, +12 pupils.
Biggest loss in a single year: 2019/20: 225 in 2018/19 → 208, -17 pupils.
Largest single-class increase: 3rd Class in 2021/22 (23 → 35, +12).
Largest single-class decrease: 1st Class in 2022/23 (34 → 20, -14).
Largest cohort-step gain: JI → SI in 2022/23 (23 → 28, +5).
Largest cohort-step loss: 1st → 2nd in 2024/25 (26 → 23, -3).
Overall: 196 (2001/02) → 201 (2025/26), 5.
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
24
22.8
6
Senior Infants
20
34
25.2
6
1st Class
20
34
25.0
6
2nd Class
22
33
26.3
6
3rd Class
23
35
27.2
6
4th Class
24
34
27.7
6
5th Class
23
34
27.2
6
6th Class
22
29
25.5
6
Total
188
231
212.0
25
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).