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
26.56
2025/26
Mainstream classes
9
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
190
7
27.14
32
5
2007/08
196
7
28.00
34
4
2008/09
195
7
27.86
32
3
2009/10
192
7
27.43
33
2
2010/11
193
7
27.57
29
0
2011/12
199
7
28.43
31
1
2012/13
194
7
27.71
31
1
2013/14
198
7
28.29
32
2
2014/15
218
7
31.14
34
7
2015/16
233
8
29.12
33
5
2016/17
222
9
24.67
27
0
2017/18
210
8
26.25
31
2
2019/20
240
8
30.00
30
8
2020/21
227
9
25.22
28
0
2021/22
225
14
16.07
28
0
2022/23
234
9
26.00
28
0
2023/24
240
9
26.67
32
1
2024/25
231
9
25.67
28
0
2025/26
239
9
26.56
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 198 in 2013/14 → 218, +20 pupils.
Biggest loss in a single year: 1997/98: 158 in 1996/97 → 137, -21 pupils.
Largest single-class increase: 1st Class in 2025/26 (23 → 50, +27).
Largest single-class decrease: 2nd Class in 2025/26 (39 → 25, -14).
Largest cohort-step gain: 1st → 2nd in 2024/25 (33 → 39, +6).
Largest cohort-step loss: 1st → 2nd in 2021/22 (31 → 30, -1).
Overall: 170 (1974/75) → 239 (2025/26), 69.
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
23
50
36.3
6
2nd Class
25
46
36.7
6
3rd Class
33
48
40.8
6
4th Class
30
47
40.2
6
5th Class
31
47
38.7
6
6th Class
31
48
40.0
6
Total
137
240
189.4
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).