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
24.92
2025/26
Mainstream classes
13
2025/26
Largest class group
29
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
279
10
27.90
32
3
2007/08
288
10
28.80
38
5
2008/09
288
11
26.18
35
4
2009/10
297
12
24.75
29
0
2010/11
288
11
26.18
30
1
2011/12
295
12
24.58
34
1
2012/13
303
12
25.25
36
3
2013/14
318
11
28.91
36
6
2014/15
323
12
26.92
35
4
2015/16
335
12
27.92
36
4
2016/17
346
13
26.62
35
3
2017/18
322
13
24.77
35
1
2019/20
339
13
26.08
31
4
2020/21
335
15
22.33
26
0
2021/22
328
14
23.43
30
2
2022/23
323
14
23.07
31
2
2023/24
318
13
24.46
31
2
2024/25
312
13
24.00
31
2
2025/26
324
13
24.92
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 232 in 1982/83 → 296, +64 pupils.
Biggest loss in a single year: 2017/18: 346 in 2016/17 → 322, -24 pupils.
Largest single-class increase: 4th Class in 2023/24 (31 → 45, +14).
Largest single-class decrease: 3rd Class in 2021/22 (46 → 32, -14).
Largest cohort-step gain: 3rd → 4th in 2025/26 (42 → 44, +2).
Largest cohort-step loss: 3rd → 4th in 2021/22 (46 → 43, -3).
Overall: 182 (1975/76) → 324 (2025/26), 142.
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
34
43
38.3
6
Senior Infants
36
43
39.7
6
1st Class
37
44
40.7
6
2nd Class
33
44
40.7
6
3rd Class
32
46
41.3
6
4th Class
31
46
41.8
6
5th Class
31
44
40.3
6
6th Class
31
44
40.5
6
Total
181
346
282.3
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).