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
22.20
2025/26
Mainstream classes
10
2025/26
Largest class group
28
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
156
6
26.00
35
1
2007/08
177
7
25.29
32
4
2008/09
187
7
26.71
32
1
2009/10
191
7
27.29
30
1
2010/11
194
7
27.71
32
3
2011/12
218
8
27.25
36
2
2012/13
244
8
30.50
37
4
2013/14
238
9
26.44
35
1
2014/15
247
9
27.44
38
2
2015/16
223
9
24.78
32
2
2016/17
215
8
26.88
33
4
2017/18
215
8
26.88
33
1
2019/20
219
9
24.33
29
0
2020/21
211
8
26.38
31
1
2021/22
205
8
25.62
31
2
2022/23
247
9
27.44
31
4
2023/24
251
11
22.82
31
3
2024/25
233
11
21.18
29
0
2025/26
222
10
22.20
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 205 in 2021/22 → 247, +42 pupils.
Biggest loss in a single year: 1993/94: 226 in 1982/83 → 171, -55 pupils.
Largest single-class increase: 1st Class in 2022/23 (25 → 49, +24).
Largest single-class decrease: 2nd Class in 2024/25 (30 → 17, -13).
Largest cohort-step gain: SI → 1st in 2022/23 (41 → 49, +8).
Largest cohort-step loss: 1st → 2nd in 2024/25 (44 → 17, -27).
Overall: 249 (1975/76) → 238 (2025/26), -11.
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
38
46
42.5
6
Senior Infants
28
45
40.5
6
1st Class
25
49
40.0
6
2nd Class
16
30
22.3
6
3rd Class
18
29
22.0
6
4th Class
18
29
22.0
6
5th Class
17
25
20.7
6
6th Class
17
23
20.8
6
Total
151
263
206.9
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).