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
25.60
2025/26
Mainstream classes
15
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
3
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
26
2
13.00
14
0
2012/13
51
3
17.00
24
0
2013/14
78
3
26.00
31
1
2014/15
111
4
27.75
31
2
2015/16
163
6
27.17
33
2
2016/17
187
7
26.71
32
1
2017/18
223
8
27.88
31
3
2019/20
260
10
26.00
33
3
2020/21
272
10
27.20
32
4
2021/22
285
11
25.91
32
3
2022/23
310
15
20.67
29
0
2023/24
336
14
24.00
34
1
2024/25
361
15
24.07
29
0
2025/26
384
15
25.60
34
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 111 in 2014/15 → 163, +52 pupils.
Largest single-class increase: 5th Class in 2025/26 (28 → 53, +25).
Largest single-class decrease: 5th Class in 2024/25 (45 → 28, -17).
Largest cohort-step gain: SI → 1st in 2023/24 (49 → 57, +8).
Largest cohort-step loss: 1st → 2nd in 2025/26 (47 → 42, -5).
Overall: 6 (2010/11) → 384 (2025/26), 378.
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
36
51
43.2
6
Senior Infants
36
49
43.5
6
1st Class
28
57
43.3
6
2nd Class
29
57
42.0
6
3rd Class
26
61
41.3
6
4th Class
27
50
39.5
6
5th Class
25
53
37.2
6
6th Class
26
47
34.7
6
Total
6
384
205.1
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).