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
20.33
2025/26
Mainstream classes
9
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
62
3
20.67
24
0
2007/08
98
4
24.50
31
1
2008/09
119
6
19.83
25
0
2009/10
125
6
20.83
22
0
2010/11
126
5
25.20
33
2
2011/12
133
5
26.60
29
0
2012/13
124
5
24.80
28
0
2013/14
151
5
30.20
35
2
2014/15
157
6
26.17
30
1
2015/16
188
7
26.86
31
1
2016/17
192
7
27.43
31
2
2017/18
188
7
26.86
32
2
2019/20
207
8
25.88
31
2
2020/21
220
8
27.50
30
2
2021/22
214
9
23.78
29
0
2022/23
202
9
22.44
28
0
2023/24
211
9
23.44
29
0
2024/25
194
10
19.40
26
0
2025/26
183
9
20.33
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 62 in 2006/07 → 98, +36 pupils.
Biggest loss in a single year: 2024/25: 241 in 2023/24 → 224, -17 pupils.
Largest single-class increase: 1st Class in 2025/26 (21 → 29, +8).
Largest single-class decrease: Junior Infants in 2024/25 (30 → 20, -10).
Largest cohort-step gain: 1st → 2nd in 2025/26 (21 → 28, +7).
Largest cohort-step loss: SI → 1st in 2024/25 (26 → 21, -5).
Overall: 35 (2002/03) → 213 (2025/26), 178.
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
20
30
25.5
6
Senior Infants
22
30
26.5
6
1st Class
21
29
26.7
6
2nd Class
24
29
26.7
6
3rd Class
24
28
26.2
6
4th Class
23
28
25.2
6
5th Class
23
28
25.2
6
6th Class
23
30
27.3
6
Total
35
241
154.2
24
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).