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
25.29
2025/26
Mainstream classes
7
2025/26
Largest class group
27
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
117
4
29.25
34
2
2007/08
125
5
25.00
27
0
2008/09
141
6
23.50
26
0
2009/10
143
6
23.83
26
0
2010/11
143
6
23.83
27
0
2011/12
152
6
25.33
31
1
2012/13
146
6
24.33
28
0
2013/14
150
6
25.00
28
0
2014/15
153
6
25.50
29
0
2015/16
150
6
25.00
27
0
2016/17
149
6
24.83
26
0
2017/18
156
6
26.00
29
0
2019/20
150
6
25.00
27
0
2020/21
151
10
15.10
25
0
2021/22
153
10
15.30
26
0
2022/23
161
6
26.83
35
2
2023/24
164
6
27.33
32
1
2024/25
170
7
24.29
28
0
2025/26
177
7
25.29
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 125 in 2007/08 → 149, +24 pupils.
Biggest loss in a single year: 1999/00: 142 in 1998/99 → 126, -16 pupils.
Largest single-class increase: 4th Class in 2022/23 (10 → 25, +15).
Largest single-class decrease: 4th Class in 2021/22 (22 → 10, -12).
Largest cohort-step gain: 3rd → 4th in 2025/26 (18 → 20, +2).
Largest cohort-step loss: 3rd → 4th in 2021/22 (13 → 10, -3).
Overall: 160 (1974/75) → 177 (2025/26), 17.
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
16
27
22.8
6
Senior Infants
13
27
20.7
6
1st Class
13
27
21.7
6
2nd Class
14
27
21.8
6
3rd Class
13
27
19.8
6
4th Class
10
25
18.5
6
5th Class
10
25
18.0
6
6th Class
10
23
19.3
6
Total
105
177
142.8
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).