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
24.86
2025/26
Mainstream classes
7
2025/26
Largest class group
32
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
104
4
26.00
31
1
2007/08
120
5
24.00
30
1
2008/09
158
6
26.33
34
2
2009/10
148
6
24.67
32
1
2010/11
150
6
25.00
31
1
2011/12
159
6
26.50
31
2
2012/13
153
6
25.50
30
1
2013/14
157
6
26.17
30
1
2014/15
188
7
26.86
31
1
2015/16
195
7
27.86
31
2
2016/17
204
7
29.14
31
3
2017/18
211
8
26.38
32
3
2019/20
215
8
26.88
32
1
2020/21
203
8
25.38
32
1
2021/22
196
8
24.50
33
1
2022/23
181
8
22.62
29
0
2023/24
182
7
26.00
31
1
2024/25
172
7
24.57
31
2
2025/26
174
7
24.86
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 120 in 2007/08 → 158, +38 pupils.
Biggest loss in a single year: 1993/94: 95 in 1982/83 → 78, -17 pupils.
Largest single-class increase: 5th Class in 2025/26 (24 → 32, +8).
Largest single-class decrease: 1st Class in 2022/23 (29 → 17, -12).
Largest cohort-step gain: JI → SI in 2025/26 (16 → 18, +2).
Largest cohort-step loss: JI → SI in 2021/22 (18 → 17, -1).
Overall: 83 (1975/76) → 174 (2025/26), 91.
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
16
22
18.8
6
Senior Infants
17
28
20.7
6
1st Class
17
29
22.3
6
2nd Class
17
29
22.2
6
3rd Class
18
29
23.8
6
4th Class
19
31
24.3
6
5th Class
21
32
26.2
6
6th Class
22
33
26.3
6
Total
51
218
122.9
41
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).