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
20.75
2025/26
Mainstream classes
8
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
137
6
22.83
29
0
2007/08
145
6
24.17
28
0
2008/09
142
6
23.67
31
1
2009/10
155
6
25.83
31
2
2010/11
164
6
27.33
30
2
2011/12
195
7
27.86
34
4
2012/13
205
8
25.62
31
2
2013/14
222
9
24.67
31
2
2014/15
226
10
22.60
32
1
2015/16
238
10
23.80
28
0
2016/17
245
11
22.27
28
0
2017/18
266
10
26.60
36
3
2019/20
271
11
24.64
32
1
2020/21
255
11
23.18
29
0
2021/22
255
11
23.18
32
1
2022/23
240
11
21.82
31
1
2023/24
207
10
20.70
32
2
2024/25
190
9
21.11
30
2
2025/26
166
8
20.75
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 434 in 1974/75 → 614, +180 pupils.
Biggest loss in a single year: 1993/94: 475 in 1983/84 → 270, -205 pupils.
Largest single-class increase: 5th Class in 2021/22 (27 → 46, +19).
Largest single-class decrease: 2nd Class in 2023/24 (35 → 19, -16).
Largest cohort-step gain: 3rd → 4th in 2025/26 (21 → 25, +4).
Largest cohort-step loss: 3rd → 4th in 2021/22 (38 → 34, -4).
Overall: 434 (1974/75) → 176 (2025/26), -258.
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
11
29
18.7
6
Senior Infants
16
32
21.7
6
1st Class
14
35
23.2
6
2nd Class
15
35
27.0
6
3rd Class
21
38
31.2
6
4th Class
25
43
33.0
6
5th Class
27
46
33.8
6
6th Class
27
45
32.8
6
Total
150
723
293.5
42
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).