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
24.22
2025/26
Mainstream classes
9
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
153
6
25.50
30
2
2007/08
151
6
25.17
30
1
2008/09
145
6
24.17
27
0
2009/10
154
6
25.67
34
1
2010/11
152
6
25.33
32
2
2011/12
159
6
26.50
33
2
2012/13
160
7
22.86
27
0
2013/14
167
7
23.86
30
1
2014/15
169
7
24.14
29
0
2015/16
164
7
23.43
31
1
2016/17
170
7
24.29
32
2
2017/18
162
7
23.14
32
2
2019/20
177
8
22.12
32
1
2020/21
183
8
22.88
33
1
2021/22
175
8
21.88
32
1
2022/23
186
8
23.25
34
1
2023/24
201
8
25.12
34
1
2024/25
200
9
22.22
34
1
2025/26
218
9
24.22
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 220 in 1978/79 → 251, +31 pupils.
Biggest loss in a single year: 1993/94: 279 in 1982/83 → 248, -31 pupils.
Largest single-class increase: 3rd Class in 2022/23 (13 → 34, +21).
Largest single-class decrease: 1st Class in 2021/22 (33 → 20, -13).
Largest cohort-step gain: 5th → 6th in 2025/26 (34 → 39, +5).
Largest cohort-step loss: SI → 1st in 2024/25 (26 → 19, -7).
Overall: 164 (1974/75) → 240 (2025/26), 76.
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
37
27.0
6
Senior Infants
21
36
26.7
6
1st Class
19
38
25.8
6
2nd Class
15
32
22.7
6
3rd Class
13
34
24.8
6
4th Class
16
34
25.0
6
5th Class
18
34
25.3
6
6th Class
20
39
26.7
6
Total
138
279
197.4
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).