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
18.88
2025/26
Mainstream classes
8
2025/26
Largest class group
23
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
71
5
14.20
18
0
2007/08
80
5
16.00
19
0
2008/09
73
5
14.60
18
0
2009/10
66
5
13.20
21
0
2010/11
74
5
14.80
19
0
2011/12
76
5
15.20
19
0
2012/13
73
5
14.60
18
0
2013/14
75
5
15.00
18
0
2014/15
148
8
18.50
23
0
2015/16
156
8
19.50
24
0
2016/17
154
8
19.25
23
0
2017/18
159
8
19.88
24
0
2019/20
158
8
19.75
23
0
2020/21
159
8
19.88
23
0
2021/22
163
8
20.38
22
0
2022/23
180
8
22.50
27
0
2023/24
163
9
18.11
23
0
2024/25
150
8
18.75
23
0
2025/26
151
8
18.88
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 84 in 2013/14 → 158, +74 pupils.
Biggest loss in a single year: 1993/94: 188 in 1983/84 → 119, -69 pupils.
Largest single-class increase: 6th Class in 2022/23 (19 → 27, +8).
Largest single-class decrease: 6th Class in 2023/24 (27 → 17, -10).
Largest cohort-step gain: 5th → 6th in 2022/23 (19 → 27, +8).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (22 → 19, -3).
Overall: 321 (1974/75) → 156 (2025/26), -165.
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
13
22
19.5
6
Senior Infants
11
23
19.3
6
1st Class
19
23
21.2
6
2nd Class
19
23
21.8
6
3rd Class
18
24
20.8
6
4th Class
19
23
20.5
6
5th Class
19
21
19.8
6
6th Class
14
27
19.7
6
Total
75
325
156.7
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).