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
23.75
2025/26
Mainstream classes
8
2025/26
Largest class group
26
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
185
7
26.43
30
1
2007/08
195
7
27.86
32
2
2008/09
207
8
25.88
28
0
2009/10
219
8
27.38
29
0
2010/11
218
8
27.25
28
0
2011/12
220
8
27.50
28
0
2012/13
219
8
27.38
28
0
2013/14
218
8
27.25
28
0
2014/15
219
8
27.38
29
0
2015/16
224
8
28.00
29
0
2016/17
229
8
28.62
29
0
2017/18
220
8
27.50
29
0
2019/20
215
8
26.88
28
0
2020/21
212
8
26.50
28
0
2021/22
206
8
25.75
27
0
2022/23
202
8
25.25
27
0
2023/24
200
8
25.00
26
0
2024/25
198
8
24.75
26
0
2025/26
190
8
23.75
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1982/83: 91 in 1981/82 → 108, +17 pupils.
Biggest loss in a single year: 2017/18: 229 in 2016/17 → 220, -9 pupils.
Largest single-class increase: Junior Infants in 2023/24 (22 → 24, +2).
Largest single-class decrease: Junior Infants in 2021/22 (26 → 22, -4).
Largest cohort-step gain: SI → 1st in 2023/24 (22 → 24, +2).
Largest cohort-step loss: 1st → 2nd in 2023/24 (27 → 25, -2).
Overall: 52 (1975/76) → 190 (2025/26), 138.
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
21
26
23.2
6
Senior Infants
22
26
24.2
6
1st Class
22
27
24.7
6
2nd Class
23
26
25.0
6
3rd Class
23
27
25.7
6
4th Class
25
28
26.3
6
5th Class
26
27
26.2
6
6th Class
25
27
26.2
6
Total
52
229
161.8
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).