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
18.75
2025/26
Mainstream classes
8
2025/26
Largest class group
26
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
213
7
30.43
36
4
2007/08
229
8
28.62
32
3
2008/09
214
9
23.78
32
1
2009/10
215
8
26.88
31
2
2010/11
212
9
23.56
30
1
2011/12
214
8
26.75
31
2
2012/13
209
8
26.12
32
3
2013/14
229
9
25.44
34
2
2014/15
213
8
26.62
32
2
2015/16
228
8
28.50
34
3
2016/17
245
9
27.22
33
2
2017/18
258
10
25.80
29
0
2019/20
249
10
24.90
28
0
2020/21
232
9
25.78
31
2
2021/22
212
9
23.56
32
1
2022/23
206
11
18.73
25
0
2023/24
196
10
19.60
25
0
2024/25
164
9
18.22
25
0
2025/26
150
8
18.75
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2004/05: 179 in 2003/04 → 204, +25 pupils.
Biggest loss in a single year: 2024/25: 196 in 2023/24 → 164, -32 pupils.
Largest single-class increase: 6th Class in 2022/23 (22 → 39, +17).
Largest single-class decrease: 6th Class in 2021/22 (40 → 22, -18).
Largest cohort-step gain: 5th → 6th in 2023/24 (32 → 38, +6).
Largest cohort-step loss: 1st → 2nd in 2024/25 (23 → 19, -4).
Overall: 276 (1975/76) → 150 (2025/26), -126.
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
12
24
19.3
6
Senior Infants
10
26
19.7
6
1st Class
16
25
21.8
6
2nd Class
13
27
21.8
6
3rd Class
19
31
25.2
6
4th Class
20
40
28.0
6
5th Class
20
39
26.8
6
6th Class
20
40
30.7
6
Total
150
311
229.6
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).