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
26.57
2025/26
Mainstream classes
7
2025/26
Largest class group
37
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
153
5
30.60
35
3
2007/08
158
6
26.33
33
1
2008/09
154
6
25.67
33
2
2009/10
148
6
24.67
32
1
2010/11
145
6
24.17
27
0
2011/12
151
6
25.17
33
1
2012/13
183
7
26.14
32
2
2013/14
185
7
26.43
31
2
2014/15
192
7
27.43
32
3
2015/16
198
7
28.29
31
4
2016/17
214
8
26.75
33
4
2017/18
212
8
26.50
30
2
2019/20
222
8
27.75
33
4
2020/21
201
9
22.33
28
0
2021/22
205
8
25.62
33
1
2022/23
195
8
24.38
33
1
2023/24
195
8
24.38
34
1
2024/25
184
8
23.00
28
0
2025/26
186
7
26.57
37
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 151 in 2011/12 → 183, +32 pupils.
Biggest loss in a single year: 1993/94: 201 in 1982/83 → 165, -36 pupils.
Largest single-class increase: 6th Class in 2021/22 (19 → 35, +16).
Largest single-class decrease: 5th Class in 2021/22 (37 → 20, -17).
Largest cohort-step gain: 1st → 2nd in 2025/26 (22 → 25, +3).
Largest cohort-step loss: 5th → 6th in 2021/22 (37 → 35, -2).
Overall: 164 (1975/76) → 192 (2025/26), 28.
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
18
27
23.2
6
Senior Infants
16
25
22.0
6
1st Class
17
28
22.8
6
2nd Class
19
28
24.3
6
3rd Class
19
33
25.2
6
4th Class
20
33
24.8
6
5th Class
19
37
26.7
6
6th Class
19
35
26.3
6
Total
127
224
170.6
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).