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
22.71
2025/26
Mainstream classes
7
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
1
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
129
5
25.80
32
1
2007/08
127
5
25.40
27
0
2008/09
144
5
28.80
32
1
2009/10
145
5
29.00
32
1
2010/11
160
6
26.67
31
1
2011/12
170
6
28.33
47
2
2012/13
168
6
28.00
30
1
2013/14
172
6
28.67
30
2
2014/15
168
6
28.00
29
0
2015/16
171
6
28.50
31
3
2016/17
170
6
28.33
32
2
2017/18
167
6
27.83
30
1
2019/20
156
6
26.00
28
0
2020/21
164
6
27.33
30
1
2021/22
160
6
26.67
30
1
2022/23
160
6
26.67
29
0
2023/24
167
6
27.83
30
1
2024/25
163
7
23.29
35
1
2025/26
159
7
22.71
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 123 in 1982/83 → 151, +28 pupils.
Biggest loss in a single year: 2003/04: 123 in 2002/03 → 108, -15 pupils.
Largest single-class increase: Junior Infants in 2023/24 (14 → 25, +11).
Largest single-class decrease: 6th Class in 2021/22 (27 → 16, -11).
Largest cohort-step gain: JI → SI in 2023/24 (14 → 16, +2).
Largest cohort-step loss: 1st → 2nd in 2025/26 (17 → 15, -2).
Overall: 124 (1974/75) → 159 (2025/26), 35.
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
13
25
18.2
6
Senior Infants
16
26
20.2
6
1st Class
17
26
20.8
6
2nd Class
15
26
19.5
6
3rd Class
16
27
21.0
6
4th Class
16
28
21.5
6
5th Class
16
29
20.7
6
6th Class
16
27
20.3
6
Total
104
172
141.2
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).