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
17.67
2025/26
Mainstream classes
9
2025/26
Largest class group
22
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
209
10
20.90
27
0
2008/09
214
10
21.40
25
0
2009/10
207
10
20.70
26
0
2010/11
185
9
20.56
29
0
2011/12
171
9
19.00
28
0
2012/13
147
8
18.38
24
0
2013/14
149
7
21.29
25
0
2014/15
135
7
19.29
23
0
2015/16
133
7
19.00
24
0
2016/17
129
7
18.43
24
0
2017/18
131
6
21.83
25
0
2019/20
141
7
20.14
24
0
2020/21
143
7
20.43
25
0
2021/22
145
7
20.71
25
0
2022/23
153
7
21.86
29
0
2023/24
164
8
20.50
25
0
2024/25
159
8
19.88
22
0
2025/26
159
9
17.67
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 145 in 2021/22 → 159, +14 pupils.
Biggest loss in a single year: 2012/13: 171 in 2011/12 → 147, -24 pupils.
Largest single-class increase: 5th Class in 2022/23 (9 → 25, +16).
Largest single-class decrease: 6th Class in 2021/22 (20 → 14, -6).
Largest cohort-step gain: 1st → 2nd in 2025/26 (21 → 27, +6).
Largest cohort-step loss: JI → SI in 2022/23 (20 → 18, -2).
Overall: 209 (2007/08) → 165 (2025/26), -44.
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
17
21
19.7
6
Senior Infants
18
21
19.7
6
1st Class
17
21
19.3
6
2nd Class
17
27
20.2
6
3rd Class
16
25
20.0
6
4th Class
10
25
19.5
6
5th Class
9
25
18.3
6
6th Class
10
25
18.2
6
Total
129
214
159.5
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).