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
24.50
2025/26
Mainstream classes
6
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
89
4
22.25
24
0
2007/08
103
4
25.75
33
1
2008/09
104
4
26.00
30
1
2009/10
108
4
27.00
32
1
2010/11
107
4
26.75
30
1
2011/12
108
4
27.00
31
1
2012/13
109
4
27.25
30
1
2013/14
108
4
27.00
31
1
2014/15
110
4
27.50
30
1
2015/16
105
4
26.25
29
0
2016/17
119
5
23.80
29
0
2017/18
131
5
26.20
33
3
2019/20
131
5
26.20
33
3
2020/21
137
5
27.40
32
2
2021/22
137
5
27.40
33
1
2022/23
142
5
28.40
32
2
2023/24
145
6
24.17
32
1
2024/25
148
6
24.67
28
0
2025/26
147
6
24.50
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 89 in 2006/07 → 103, +14 pupils.
Biggest loss in a single year: 2001/02: 139 in 2000/01 → 124, -15 pupils.
Largest single-class increase: 4th Class in 2025/26 (14 → 27, +13).
Largest single-class decrease: 1st Class in 2023/24 (25 → 15, -10).
Largest cohort-step gain: SI → 1st in 2025/26 (17 → 22, +5).
Largest cohort-step loss: 1st → 2nd in 2023/24 (25 → 23, -2).
Overall: 138 (1999/00) → 159 (2025/26), 21.
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
22
17.3
6
Senior Infants
13
23
17.3
6
1st Class
13
25
17.7
6
2nd Class
13
23
17.3
6
3rd Class
14
24
18.7
6
4th Class
14
27
19.3
6
5th Class
14
21
18.3
6
6th Class
14
22
19.3
6
Total
89
160
120.6
27
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).