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
19.50
2025/26
Mainstream classes
6
2025/26
Largest class group
26
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
90
4
22.50
27
0
2007/08
92
4
23.00
27
0
2008/09
92
4
23.00
30
1
2009/10
99
4
24.75
30
1
2010/11
107
4
26.75
33
1
2011/12
115
4
28.75
37
2
2012/13
127
5
25.40
33
1
2013/14
142
5
28.40
37
2
2014/15
149
5
29.80
39
3
2015/16
161
6
26.83
37
2
2016/17
163
6
27.17
38
2
2017/18
169
6
28.17
38
2
2019/20
170
6
28.33
34
4
2020/21
159
6
26.50
30
2
2021/22
139
6
23.17
33
1
2022/23
146
6
24.33
33
2
2023/24
136
6
22.67
30
1
2024/25
133
6
22.17
30
1
2025/26
117
6
19.50
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 102 in 1977/78 → 122, +20 pupils.
Biggest loss in a single year: 1993/94: 141 in 1983/84 → 121, -20 pupils.
Largest single-class increase: Junior Infants in 2024/25 (9 → 21, +12).
Largest single-class decrease: 6th Class in 2021/22 (30 → 17, -13).
Largest cohort-step gain: JI → SI in 2021/22 (10 → 11, +1).
Largest cohort-step loss: 4th → 5th in 2021/22 (20 → 16, -4).
Overall: 111 (1974/75) → 117 (2025/26), 6.
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
9
21
14.0
6
Senior Infants
8
20
15.0
6
1st Class
8
19
14.7
6
2nd Class
11
25
17.5
6
3rd Class
12
25
18.0
6
4th Class
12
25
19.0
6
5th Class
16
24
19.0
6
6th Class
16
30
21.2
6
Total
89
170
120.9
43
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).