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
17.94
2025/26
Mainstream classes
16
2025/26
Largest class group
22
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
116
6
19.33
23
0
2007/08
137
7
19.57
30
1
2008/09
156
8
19.50
26
0
2009/10
176
9
19.56
28
0
2010/11
203
10
20.30
30
1
2011/12
229
11
20.82
29
0
2012/13
256
12
21.33
29
0
2013/14
296
14
21.14
31
1
2014/15
315
16
19.69
30
2
2015/16
312
15
20.80
31
1
2016/17
325
15
21.67
33
1
2017/18
329
16
20.56
26
0
2019/20
325
16
20.31
25
0
2020/21
312
16
19.50
25
0
2021/22
311
16
19.44
24
0
2022/23
300
16
18.75
24
0
2023/24
289
16
18.06
21
0
2024/25
287
16
17.94
22
0
2025/26
287
16
17.94
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 180 in 1974/75 → 222, +42 pupils.
Biggest loss in a single year: 1993/94: 212 in 1983/84 → 106, -106 pupils.
Largest single-class increase: Junior Infants in 2021/22 (30 → 45, +15).
Largest single-class decrease: 4th Class in 2021/22 (46 → 35, -11).
Largest cohort-step gain: 2nd → 3rd in 2023/24 (37 → 41, +4).
Largest cohort-step loss: JI → SI in 2023/24 (39 → 36, -3).
Overall: 180 (1974/75) → 299 (2025/26), 119.
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
45
36.8
6
Senior Infants
33
43
36.2
6
1st Class
33
42
37.2
6
2nd Class
34
43
37.0
6
3rd Class
34
42
37.7
6
4th Class
34
46
38.5
6
5th Class
34
47
40.5
6
6th Class
34
48
41.3
6
Total
89
335
205.4
42
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).