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
23.62
2025/26
Mainstream classes
8
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
1
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
183
6
30.50
33
5
2007/08
188
7
26.86
31
1
2008/09
195
7
27.86
31
2
2009/10
191
7
27.29
31
2
2010/11
192
7
27.43
31
3
2011/12
207
8
25.88
28
0
2012/13
207
8
25.88
30
1
2013/14
207
8
25.88
29
0
2014/15
212
8
26.50
30
1
2015/16
216
8
27.00
30
1
2016/17
217
8
27.12
30
2
2017/18
226
8
28.25
34
3
2019/20
233
9
25.89
31
3
2020/21
235
9
26.11
31
3
2021/22
226
9
25.11
31
4
2022/23
220
9
24.44
32
3
2023/24
214
9
23.78
31
2
2024/25
200
9
22.22
33
1
2025/26
189
8
23.62
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2001/02: 150 in 2000/01 → 166, +16 pupils.
Biggest loss in a single year: 1993/94: 233 in 1982/83 → 178, -55 pupils.
Largest single-class increase: 1st Class in 2022/23 (26 → 33, +7).
Largest single-class decrease: 1st Class in 2023/24 (33 → 19, -14).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (18 → 23, +5).
Largest cohort-step loss: 1st → 2nd in 2023/24 (33 → 31, -2).
Overall: 239 (1975/76) → 196 (2025/26), -43.
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
16
29
21.7
6
Senior Infants
17
30
22.7
6
1st Class
19
33
25.2
6
2nd Class
18
37
26.5
6
3rd Class
23
37
29.0
6
4th Class
24
37
30.3
6
5th Class
25
37
30.5
6
6th Class
25
37
30.5
6
Total
150
242
200.7
41
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).