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
22.80
2025/26
Mainstream classes
5
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
105
4
26.25
31
1
2007/08
104
4
26.00
32
1
2008/09
104
4
26.00
32
1
2009/10
93
4
23.25
27
0
2010/11
105
4
26.25
32
1
2011/12
119
4
29.75
35
2
2012/13
117
5
23.40
31
1
2013/14
128
5
25.60
32
2
2014/15
133
5
26.60
30
1
2015/16
142
5
28.40
32
3
2016/17
142
5
28.40
30
1
2017/18
146
5
29.20
32
3
2019/20
135
5
27.00
33
1
2020/21
142
6
23.67
31
2
2021/22
119
7
17.00
25
0
2022/23
121
5
24.20
25
0
2023/24
114
5
22.80
26
0
2024/25
113
5
22.60
30
1
2025/26
114
5
22.80
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 105 in 2010/11 → 119, +14 pupils.
Biggest loss in a single year: 2021/22: 142 in 2020/21 → 119, -23 pupils.
Largest single-class increase: 6th Class in 2022/23 (12 → 20, +8).
Largest single-class decrease: 4th Class in 2021/22 (22 → 11, -11).
Largest cohort-step gain: 1st → 2nd in 2022/23 (18 → 20, +2).
Largest cohort-step loss: 5th → 6th in 2021/22 (16 → 12, -4).
Overall: 139 (1975/76) → 114 (2025/26), -25.
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
17
13.7
6
Senior Infants
12
20
14.5
6
1st Class
11
18
14.2
6
2nd Class
10
20
15.0
6
3rd Class
11
20
14.5
6
4th Class
11
22
16.3
6
5th Class
11
21
16.3
6
6th Class
11
21
16.0
6
Total
93
155
121.7
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).