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
26.29
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
60
3
20.00
23
0
2007/08
85
4
21.25
25
0
2008/09
109
5
21.80
26
0
2009/10
113
5
22.60
33
1
2010/11
89
5
17.80
26
0
2011/12
95
4
23.75
27
0
2012/13
118
4
29.50
31
2
2013/14
131
5
26.20
29
0
2014/15
146
5
29.20
40
1
2015/16
151
6
25.17
28
0
2016/17
144
6
24.00
34
1
2017/18
153
7
21.86
26
0
2019/20
174
7
24.86
33
2
2020/21
167
7
23.86
35
2
2021/22
179
7
25.57
34
2
2022/23
175
7
25.00
33
2
2023/24
169
7
24.14
32
2
2024/25
180
7
25.71
32
3
2025/26
184
7
26.29
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 35 in 2005/06 → 60, +25 pupils.
Biggest loss in a single year: 2010/11: 113 in 2009/10 → 89, -24 pupils.
Largest single-class increase: Junior Infants in 2021/22 (18 → 31, +13).
Largest single-class decrease: Junior Infants in 2022/23 (31 → 20, -11).
Largest cohort-step gain: 1st → 2nd in 2025/26 (20 → 22, +2).
Largest cohort-step loss: 5th → 6th in 2024/25 (21 → 19, -2).
Overall: 18 (2003/04) → 195 (2025/26), 177.
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
18
31
25.3
6
Senior Infants
15
32
23.5
6
1st Class
16
31
22.7
6
2nd Class
15
30
21.7
6
3rd Class
14
31
21.7
6
4th Class
14
26
20.2
6
5th Class
16
27
21.3
6
6th Class
18
27
21.2
6
Total
18
195
125.7
23
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).