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
20.60
2025/26
Mainstream classes
15
2025/26
Largest class group
26
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+
2008/09
34
2
17.00
19
0
2009/10
75
4
18.75
22
0
2010/11
122
6
20.33
25
0
2011/12
165
7
23.57
29
0
2012/13
199
8
24.88
28
0
2013/14
237
9
26.33
29
0
2014/15
260
10
26.00
30
1
2015/16
288
11
26.18
30
4
2016/17
287
12
23.92
31
1
2017/18
312
13
24.00
30
1
2019/20
358
15
23.87
33
1
2020/21
354
16
22.12
25
0
2021/22
349
15
23.27
27
0
2022/23
351
15
23.40
28
0
2023/24
336
15
22.40
34
1
2024/25
329
15
21.93
27
0
2025/26
309
15
20.60
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 75 in 2009/10 → 122, +47 pupils.
Biggest loss in a single year: 2025/26: 352 in 2024/25 → 333, -19 pupils.
Largest single-class increase: 3rd Class in 2021/22 (32 → 51, +19).
Largest single-class decrease: 4th Class in 2021/22 (46 → 32, -14).
Largest cohort-step gain: JI → SI in 2022/23 (40 → 44, +4).
Largest cohort-step loss: 4th → 5th in 2023/24 (51 → 46, -5).
Overall: 34 (2008/09) → 333 (2025/26), 299.
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
40.7
6
Senior Infants
38
46
42.5
6
1st Class
39
47
43.7
6
2nd Class
40
50
44.7
6
3rd Class
32
51
42.8
6
4th Class
32
51
41.8
6
5th Class
34
48
42.5
6
6th Class
34
47
43.3
6
Total
34
370
271.9
18
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).