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
26.00
2025/26
Mainstream classes
14
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+
2010/11
6
1
6.00
6
0
2011/12
61
3
20.33
23
0
2012/13
136
5
27.20
39
1
2013/14
186
8
23.25
31
1
2014/15
220
9
24.44
31
1
2015/16
245
10
24.50
32
1
2016/17
261
10
26.10
33
1
2017/18
262
10
26.20
31
1
2019/20
253
10
25.30
28
0
2020/21
257
10
25.70
28
0
2021/22
262
10
26.20
29
0
2022/23
295
11
26.82
27
0
2023/24
322
12
26.83
27
0
2024/25
343
13
26.38
27
0
2025/26
364
14
26.00
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 61 in 2011/12 → 136, +75 pupils.
Biggest loss in a single year: 2019/20: 261 in 2018/19 → 253, -8 pupils.
Largest single-class increase: 1st Class in 2022/23 (27 → 54, +27).
Largest single-class decrease: 6th Class in 2021/22 (54 → 29, -25).
Largest cohort-step gain: JI → SI in 2022/23 (48 → 54, +6).
Largest cohort-step loss: SI → 1st in 2024/25 (53 → 51, -2).
Overall: 6 (2010/11) → 364 (2025/26), 358.
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
46
54
49.7
6
Senior Infants
26
54
47.8
6
1st Class
27
54
44.2
6
2nd Class
23
54
39.2
6
3rd Class
26
55
36.0
6
4th Class
27
54
31.5
6
5th Class
27
28
27.2
6
6th Class
26
54
31.7
6
Total
6
364
233.4
16
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).