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
21.33
2025/26
Mainstream classes
6
2025/26
Largest class group
29
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
211
8
26.38
32
2
2007/08
202
8
25.25
32
2
2008/09
205
8
25.62
32
2
2009/10
206
8
25.75
30
2
2010/11
209
8
26.12
30
2
2011/12
208
8
26.00
30
1
2012/13
209
8
26.12
29
0
2013/14
208
8
26.00
29
0
2014/15
213
8
26.62
32
1
2015/16
215
8
26.88
31
1
2016/17
204
8
25.50
32
2
2017/18
200
8
25.00
32
2
2019/20
203
8
25.38
32
1
2020/21
176
8
22.00
31
1
2021/22
180
8
22.50
33
1
2022/23
172
7
24.57
30
1
2023/24
143
7
20.43
26
0
2024/25
134
6
22.33
28
0
2025/26
128
6
21.33
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 90 in 1983/84 → 180, +90 pupils.
Biggest loss in a single year: 2020/21: 203 in 2019/20 → 176, -27 pupils.
Largest single-class increase: Senior Infants in 2022/23 (11 → 21, +10).
Largest single-class decrease: 6th Class in 2023/24 (28 → 17, -11).
Largest cohort-step gain: 2nd → 3rd in 2024/25 (12 → 16, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (21 → 13, -8).
Overall: 44 (1974/75) → 140 (2025/26), 96.
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
7
20
14.2
6
Senior Infants
10
21
15.3
6
1st Class
13
21
17.0
6
2nd Class
12
23
18.8
6
3rd Class
15
26
20.7
6
4th Class
16
26
22.5
6
5th Class
18
31
24.3
6
6th Class
17
33
24.7
6
Total
44
216
163.2
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).