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
26.89
2025/26
Mainstream classes
9
2025/26
Largest class group
36
2025/26
Classes with 30+ pupils
4
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
116
4
29.00
31
3
2007/08
127
5
25.40
31
2
2008/09
126
5
25.20
32
2
2009/10
135
5
27.00
33
2
2010/11
139
5
27.80
33
2
2011/12
157
6
26.17
35
2
2012/13
170
6
28.33
34
2
2013/14
174
6
29.00
31
3
2014/15
184
7
26.29
33
1
2015/16
195
7
27.86
33
2
2016/17
211
7
30.14
34
4
2017/18
226
8
28.25
31
3
2019/20
234
9
26.00
32
3
2020/21
229
9
25.44
32
2
2021/22
224
9
24.89
32
1
2022/23
230
9
25.56
31
2
2023/24
219
9
24.33
30
1
2024/25
231
9
25.67
36
3
2025/26
242
9
26.89
36
4
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 139 in 2010/11 → 157, +18 pupils.
Biggest loss in a single year: 1995/96: 163 in 1994/95 → 145, -18 pupils.
Largest single-class increase: 5th Class in 2021/22 (20 → 41, +21).
Largest single-class decrease: 6th Class in 2023/24 (41 → 23, -18).
Largest cohort-step gain: 1st → 2nd in 2023/24 (31 → 34, +3).
Largest cohort-step loss: JI → SI in 2025/26 (30 → 28, -2).
Overall: 108 (1974/75) → 242 (2025/26), 134.
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
26
34
30.0
6
Senior Infants
25
32
27.8
6
1st Class
25
33
28.3
6
2nd Class
25
34
29.2
6
3rd Class
26
36
28.8
6
4th Class
24
39
29.7
6
5th Class
20
41
27.2
6
6th Class
20
41
28.2
6
Total
97
242
159.9
43
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).