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
16.91
2025/26
Mainstream classes
11
2025/26
Largest class group
22
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
220
8
27.50
35
2
2007/08
220
8
27.50
34
1
2008/09
212
8
26.50
32
2
2009/10
202
8
25.25
33
1
2010/11
212
8
26.50
33
2
2011/12
198
8
24.75
31
1
2012/13
190
7
27.14
33
2
2013/14
193
7
27.57
30
2
2014/15
196
7
28.00
29
0
2015/16
196
7
28.00
31
1
2016/17
204
7
29.14
33
3
2017/18
221
8
27.62
32
2
2019/20
198
8
24.75
29
0
2020/21
196
8
24.50
29
0
2021/22
179
8
22.38
31
1
2022/23
178
10
17.80
27
0
2023/24
203
9
22.56
29
0
2024/25
200
11
18.18
29
0
2025/26
186
11
16.91
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 121 in 1974/75 → 184, +63 pupils.
Biggest loss in a single year: 2011/12: 223 in 2010/11 → 198, -25 pupils.
Largest single-class increase: Senior Infants in 2023/24 (16 → 29, +13).
Largest single-class decrease: 3rd Class in 2022/23 (31 → 16, -15).
Largest cohort-step gain: 4th → 5th in 2023/24 (28 → 36, +8).
Largest cohort-step loss: JI → SI in 2024/25 (24 → 19, -5).
Overall: 121 (1974/75) → 192 (2025/26), 71.
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
14
25
22.5
6
Senior Infants
16
29
21.5
6
1st Class
14
30
21.2
6
2nd Class
15
30
23.3
6
3rd Class
16
31
23.2
6
4th Class
21
32
25.5
6
5th Class
21
36
26.0
6
6th Class
23
38
28.2
6
Total
121
227
201.5
42
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).