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
23.75
2025/26
Mainstream classes
12
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+
2006/07
257
10
25.70
33
2
2007/08
259
10
25.90
36
3
2008/09
257
10
25.70
36
2
2009/10
246
10
24.60
36
3
2010/11
256
9
28.44
36
5
2011/12
267
10
26.70
37
3
2012/13
259
10
25.90
34
3
2013/14
267
10
26.70
33
3
2014/15
263
10
26.30
33
3
2015/16
268
10
26.80
38
4
2016/17
268
11
24.36
32
1
2017/18
280
11
25.45
36
2
2019/20
278
10
27.80
36
4
2020/21
292
11
26.55
36
2
2021/22
296
11
26.91
35
2
2022/23
302
12
25.17
30
1
2023/24
300
12
25.00
29
0
2024/25
301
12
25.08
30
1
2025/26
285
12
23.75
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2019/20: 263 in 2018/19 → 278, +15 pupils.
Biggest loss in a single year: 2018/19: 280 in 2017/18 → 263, -17 pupils.
Largest single-class increase: 1st Class in 2021/22 (32 → 42, +10).
Largest single-class decrease: 3rd Class in 2022/23 (41 → 33, -8).
Largest cohort-step gain: JI → SI in 2024/25 (31 → 34, +3).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (42 → 39, -3).
Overall: 258 (1993/94) → 285 (2025/26), 27.
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
30
39
35.0
6
Senior Infants
34
41
37.2
6
1st Class
32
42
36.8
6
2nd Class
34
42
38.2
6
3rd Class
33
41
37.7
6
4th Class
35
43
37.5
6
5th Class
34
42
37.0
6
6th Class
35
41
36.7
6
Total
249
302
272.0
33
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).