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
16.71
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+
2007/08
160
6
26.67
29
0
2008/09
154
6
25.67
28
0
2009/10
150
6
25.00
29
0
2010/11
144
6
24.00
30
1
2011/12
156
6
26.00
33
2
2012/13
158
6
26.33
32
1
2013/14
171
8
21.38
28
0
2014/15
175
7
25.00
30
1
2015/16
182
7
26.00
32
2
2016/17
169
7
24.14
28
0
2017/18
168
7
24.00
30
1
2019/20
156
7
22.29
32
1
2020/21
148
7
21.14
27
0
2021/22
139
7
19.86
27
0
2022/23
138
7
19.71
28
0
2023/24
125
7
17.86
27
0
2024/25
135
6
22.50
30
2
2025/26
117
7
16.71
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 144 in 2010/11 → 168, +24 pupils.
Biggest loss in a single year: 2025/26: 165 in 2024/25 → 147, -18 pupils.
Largest single-class increase: Junior Infants in 2025/26 (16 → 44, +28).
Largest single-class decrease: 4th Class in 2021/22 (27 → 10, -17).
Largest cohort-step gain: 5th → 6th in 2024/25 (26 → 30, +4).
Largest cohort-step loss: JI → SI in 2023/24 (17 → 15, -2).
Overall: 160 (2007/08) → 147 (2025/26), -13.
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
12
44
19.5
6
Senior Infants
13
16
14.7
6
1st Class
12
18
14.7
6
2nd Class
12
23
16.0
6
3rd Class
10
23
15.8
6
4th Class
10
27
17.7
6
5th Class
10
27
19.2
6
6th Class
10
30
21.2
6
Total
144
200
172.9
19
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).