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
25.57
2025/26
Mainstream classes
7
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
2
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
241
9
26.78
33
3
2007/08
238
9
26.44
33
4
2008/09
234
9
26.00
31
3
2009/10
241
9
26.78
31
2
2010/11
241
9
26.78
32
3
2011/12
246
9
27.33
33
4
2012/13
249
9
27.67
33
2
2013/14
251
9
27.89
34
4
2014/15
255
9
28.33
35
5
2015/16
262
9
29.11
34
6
2016/17
259
9
28.78
34
6
2017/18
253
9
28.11
34
5
2019/20
241
9
26.78
33
4
2020/21
229
9
25.44
31
4
2021/22
221
9
24.56
31
4
2022/23
212
9
23.56
31
3
2023/24
196
9
21.78
30
1
2024/25
183
8
22.88
30
1
2025/26
179
7
25.57
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 166 in 1999/00 → 204, +38 pupils.
Biggest loss in a single year: 2023/24: 212 in 2022/23 → 196, -16 pupils.
Largest single-class increase: Junior Infants in 2025/26 (17 → 25, +8).
Largest single-class decrease: 4th Class in 2025/26 (29 → 18, -11).
Largest cohort-step gain: JI → SI in 2025/26 (17 → 19, +2).
Largest cohort-step loss: 3rd → 4th in 2025/26 (21 → 18, -3).
Overall: 25 (1994/95) → 179 (2025/26), 154.
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
17
25
21.5
6
Senior Infants
17
29
22.2
6
1st Class
14
31
23.5
6
2nd Class
20
30
25.3
6
3rd Class
20
30
26.2
6
4th Class
18
31
27.0
6
5th Class
25
31
29.0
6
6th Class
25
31
28.7
6
Total
25
262
207.8
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).