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
25.89
2025/26
Mainstream classes
9
2025/26
Largest class group
35
2025/26
Classes with 30+ pupils
3
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
265
9
29.44
33
5
2007/08
271
10
27.10
30
1
2008/09
263
10
26.30
29
0
2009/10
268
10
26.80
31
3
2010/11
263
10
26.30
30
2
2011/12
265
10
26.50
31
1
2012/13
249
10
24.90
29
0
2013/14
232
9
25.78
33
2
2014/15
225
9
25.00
30
1
2015/16
212
8
26.50
38
2
2016/17
238
9
26.44
29
0
2017/18
243
9
27.00
31
2
2019/20
276
10
27.60
31
2
2020/21
250
11
22.73
31
2
2021/22
253
10
25.30
30
2
2022/23
244
10
24.40
34
3
2023/24
250
10
25.00
35
3
2024/25
230
10
23.00
34
2
2025/26
233
9
25.89
35
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 213 in 2004/05 → 249, +36 pupils.
Biggest loss in a single year: 1993/94: 294 in 1983/84 → 225, -69 pupils.
Largest single-class increase: 4th Class in 2023/24 (31 → 68, +37).
Largest single-class decrease: 4th Class in 2024/25 (68 → 34, -34).
Largest cohort-step gain: 4th → 5th in 2022/23 (60 → 67, +7).
Largest cohort-step loss: 4th → 5th in 2024/25 (68 → 67, -1).
Overall: 343 (1974/75) → 233 (2025/26), -110.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
27
60
39.3
6
3rd Class
29
64
45.7
6
4th Class
31
68
48.3
6
5th Class
35
67
51.3
6
6th Class
41
70
58.7
6
Total
189
385
260.6
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).