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
21.00
2025/26
Mainstream classes
9
2025/26
Largest class group
27
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
211
7
30.14
34
4
2007/08
225
8
28.12
34
4
2008/09
229
8
28.62
34
4
2009/10
241
8
30.12
36
5
2010/11
252
9
28.00
34
3
2011/12
261
9
29.00
37
4
2012/13
261
10
26.10
32
2
2013/14
263
10
26.30
32
2
2014/15
259
10
25.90
32
2
2015/16
254
10
25.40
31
1
2016/17
256
9
28.44
35
3
2017/18
248
10
24.80
34
3
2019/20
239
9
26.56
35
4
2020/21
232
9
25.78
33
4
2021/22
231
9
25.67
34
3
2022/23
224
9
24.89
33
3
2023/24
218
9
24.22
33
2
2024/25
200
9
22.22
31
1
2025/26
189
9
21.00
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 81 in 1983/84 → 104, +23 pupils.
Biggest loss in a single year: 2024/25: 230 in 2023/24 → 212, -18 pupils.
Largest single-class increase: 5th Class in 2021/22 (23 → 31, +8).
Largest single-class decrease: 2nd Class in 2021/22 (33 → 25, -8).
Largest cohort-step gain: 1st → 2nd in 2025/26 (21 → 27, +6).
Largest cohort-step loss: JI → SI in 2022/23 (27 → 25, -2).
Overall: 51 (1974/75) → 201 (2025/26), 150.
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
19
27
21.8
6
Senior Infants
17
30
22.8
6
1st Class
21
30
24.0
6
2nd Class
24
33
27.5
6
3rd Class
24
37
30.0
6
4th Class
24
38
30.7
6
5th Class
23
36
30.8
6
6th Class
22
37
30.0
6
Total
51
263
168.4
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).