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
20.50
2025/26
Mainstream classes
8
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
116
4
29.00
34
2
2007/08
114
5
22.80
25
0
2008/09
115
5
23.00
25
0
2009/10
117
5
23.40
27
0
2010/11
117
5
23.40
29
0
2011/12
116
5
23.20
31
1
2012/13
106
5
21.20
29
0
2013/14
121
5
24.20
32
1
2014/15
116
5
23.20
29
0
2015/16
122
5
24.40
29
0
2016/17
121
5
24.20
30
2
2017/18
123
5
24.60
28
0
2019/20
149
6
24.83
31
1
2020/21
153
6
25.50
38
2
2021/22
151
6
25.17
33
1
2022/23
148
7
21.14
27
0
2023/24
148
6
24.67
32
2
2024/25
158
6
26.33
36
3
2025/26
164
8
20.50
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 101 in 1974/75 → 127, +26 pupils.
Biggest loss in a single year: 1993/94: 175 in 1983/84 → 116, -59 pupils.
Largest single-class increase: 3rd Class in 2021/22 (12 → 22, +10).
Largest single-class decrease: 4th Class in 2021/22 (22 → 11, -11).
Largest cohort-step gain: JI → SI in 2024/25 (19 → 22, +3).
Largest cohort-step loss: 3rd → 4th in 2025/26 (17 → 15, -2).
Overall: 101 (1974/75) → 176 (2025/26), 75.
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
15
28
20.7
6
Senior Infants
13
29
20.2
6
1st Class
13
23
19.0
6
2nd Class
14
24
19.7
6
3rd Class
12
23
18.8
6
4th Class
11
24
19.5
6
5th Class
11
24
20.3
6
6th Class
11
25
19.5
6
Total
97
176
127.4
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).