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
22.90
2025/26
Mainstream classes
10
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
247
9
27.44
31
4
2007/08
250
9
27.78
32
3
2008/09
259
9
28.78
37
6
2009/10
273
9
30.33
37
6
2010/11
276
10
27.60
35
6
2011/12
276
10
27.60
35
3
2012/13
266
10
26.60
35
3
2013/14
273
10
27.30
37
5
2014/15
272
10
27.20
35
3
2015/16
269
10
26.90
33
2
2016/17
272
10
27.20
35
3
2017/18
264
10
26.40
37
4
2019/20
258
10
25.80
36
4
2020/21
250
11
22.73
27
0
2021/22
238
10
23.80
33
2
2022/23
237
9
26.33
30
1
2023/24
241
9
26.78
36
1
2024/25
231
10
23.10
30
1
2025/26
229
10
22.90
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2002/03: 237 in 2001/02 → 251, +14 pupils.
Biggest loss in a single year: 1993/94: 321 in 1983/84 → 278, -43 pupils.
Largest single-class increase: Senior Infants in 2023/24 (25 → 32, +7).
Largest single-class decrease: 3rd Class in 2021/22 (38 → 29, -9).
Largest cohort-step gain: JI → SI in 2023/24 (30 → 32, +2).
Largest cohort-step loss: JI → SI in 2024/25 (33 → 30, -3).
Overall: 289 (1974/75) → 235 (2025/26), -54.
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
24
36
29.5
6
Senior Infants
25
36
29.3
6
1st Class
26
33
29.2
6
2nd Class
26
33
28.8
6
3rd Class
26
38
29.5
6
4th Class
26
37
30.2
6
5th Class
25
36
30.5
6
6th Class
29
36
32.7
6
Total
231
321
266.3
43
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).