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
24.12
2025/26
Mainstream classes
8
2025/26
Largest class group
35
2025/26
Classes with 30+ pupils
2
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
180
7
25.71
30
1
2007/08
193
7
27.57
32
2
2008/09
206
7
29.43
33
4
2009/10
201
7
28.71
35
3
2010/11
201
7
28.71
35
4
2011/12
181
7
25.86
34
1
2012/13
189
7
27.00
38
2
2013/14
199
7
28.43
34
1
2014/15
217
7
31.00
36
4
2015/16
211
8
26.38
33
2
2016/17
204
8
25.50
33
1
2017/18
196
8
24.50
33
2
2019/20
200
7
28.57
31
4
2020/21
195
8
24.38
33
1
2021/22
183
8
22.88
34
1
2022/23
195
8
24.38
33
2
2023/24
190
8
23.75
35
2
2024/25
205
8
25.62
35
2
2025/26
193
8
24.12
35
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 121 in 1983/84 → 154, +33 pupils.
Biggest loss in a single year: 2011/12: 201 in 2010/11 → 181, -20 pupils.
Largest single-class increase: 2nd Class in 2021/22 (17 → 34, +17).
Largest single-class decrease: Junior Infants in 2025/26 (26 → 13, -13).
Largest cohort-step gain: 5th → 6th in 2022/23 (21 → 28, +7).
Largest cohort-step loss: 1st → 2nd in 2025/26 (25 → 21, -4).
Overall: 132 (1974/75) → 193 (2025/26), 61.
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
13
26
20.0
6
Senior Infants
21
27
23.7
6
1st Class
18
33
25.2
6
2nd Class
17
34
23.5
6
3rd Class
16
33
23.3
6
4th Class
19
35
24.7
6
5th Class
18
35
26.0
6
6th Class
23
35
27.2
6
Total
115
217
172.1
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).