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
26.00
2025/26
Mainstream classes
8
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
164
7
23.43
28
0
2007/08
180
7
25.71
27
0
2008/09
181
7
25.86
33
2
2009/10
184
7
26.29
32
2
2010/11
166
7
23.71
32
1
2011/12
177
7
25.29
29
0
2012/13
185
7
26.43
30
1
2013/14
192
7
27.43
34
3
2014/15
215
8
26.88
34
3
2015/16
247
9
27.44
34
3
2016/17
251
10
25.10
34
1
2017/18
245
9
27.22
32
2
2019/20
237
9
26.33
30
1
2020/21
233
9
25.89
29
0
2021/22
232
9
25.78
28
0
2022/23
225
9
25.00
29
0
2023/24
215
9
23.89
30
1
2024/25
211
9
23.44
31
1
2025/26
208
8
26.00
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 215 in 2014/15 → 247, +32 pupils.
Biggest loss in a single year: 2010/11: 184 in 2009/10 → 166, -18 pupils.
Largest single-class increase: 6th Class in 2021/22 (28 → 36, +8).
Largest single-class decrease: 4th Class in 2021/22 (39 → 25, -14).
Largest cohort-step gain: JI → SI in 2021/22 (26 → 28, +2).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (28 → 26, -2).
Overall: 24 (1996/97) → 208 (2025/26), 184.
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
24
29
26.8
6
Senior Infants
22
29
26.5
6
1st Class
22
30
27.2
6
2nd Class
22
31
27.8
6
3rd Class
22
30
26.3
6
4th Class
23
39
27.8
6
5th Class
22
38
28.8
6
6th Class
24
38
29.3
6
Total
24
251
173.2
30
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).