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
17.86
2025/26
Mainstream classes
7
2025/26
Largest class group
24
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
144
9
16.00
21
0
2007/08
156
8
19.50
24
0
2008/09
156
8
19.50
26
0
2009/10
152
8
19.00
25
0
2010/11
152
8
19.00
25
0
2011/12
173
8
21.62
25
0
2012/13
170
8
21.25
24
0
2013/14
173
8
21.62
24
0
2014/15
169
8
21.12
23
0
2015/16
169
8
21.12
24
0
2016/17
170
8
21.25
25
0
2017/18
173
8
21.62
26
0
2019/20
169
9
18.78
24
0
2020/21
159
8
19.88
26
0
2021/22
155
8
19.38
24
0
2022/23
152
8
19.00
25
0
2023/24
132
8
16.50
24
0
2024/25
127
7
18.14
25
0
2025/26
125
7
17.86
24
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 174 in 2006/07 → 190, +16 pupils.
Biggest loss in a single year: 1975/76: 1083 in 1974/75 → 872, -211 pupils.
Largest single-class increase: Junior Infants in 2023/24 (8 → 19, +11).
Largest single-class decrease: 1st Class in 2021/22 (22 → 11, -11).
Largest cohort-step gain: 1st → 2nd in 2022/23 (11 → 15, +4).
Largest cohort-step loss: 1st → 2nd in 2023/24 (17 → 11, -6).
Overall: 1083 (1974/75) → 131 (2025/26), -952.
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
8
20
16.8
6
Senior Infants
9
21
15.7
6
1st Class
11
22
15.8
6
2nd Class
11
26
17.0
6
3rd Class
11
24
18.3
6
4th Class
13
23
18.3
6
5th Class
14
24
19.8
6
6th Class
19
25
21.7
6
Total
131
1083
304.5
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).