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
23.56
2025/26
Mainstream classes
9
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
196
7
28.00
33
3
2007/08
208
7
29.71
34
4
2008/09
213
8
26.62
31
1
2009/10
226
8
28.25
32
2
2010/11
240
8
30.00
39
4
2011/12
244
9
27.11
32
3
2012/13
250
9
27.78
32
2
2013/14
259
9
28.78
32
2
2014/15
259
10
25.90
30
1
2015/16
273
10
27.30
30
3
2016/17
285
10
28.50
31
4
2017/18
277
11
25.18
30
1
2019/20
261
10
26.10
28
0
2020/21
257
14
18.36
31
1
2021/22
240
13
18.46
31
1
2022/23
232
11
21.09
31
1
2023/24
219
9
24.33
30
1
2024/25
207
9
23.00
29
0
2025/26
212
9
23.56
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 114 in 1999/00 → 140, +26 pupils.
Biggest loss in a single year: 2021/22: 257 in 2020/21 → 240, -17 pupils.
Largest single-class increase: 3rd Class in 2022/23 (18 → 34, +16).
Largest single-class decrease: 3rd Class in 2021/22 (35 → 18, -17).
Largest cohort-step gain: JI → SI in 2025/26 (18 → 24, +6).
Largest cohort-step loss: 3rd → 4th in 2023/24 (34 → 30, -4).
Overall: 135 (1974/75) → 218 (2025/26), 83.
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
31
24.3
6
Senior Infants
21
31
26.3
6
1st Class
22
33
27.8
6
2nd Class
19
32
26.5
6
3rd Class
18
35
29.0
6
4th Class
19
37
30.8
6
5th Class
21
36
31.7
6
6th Class
23
38
32.3
6
Total
113
285
192.1
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).