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
21.00
2025/26
Mainstream classes
5
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
86
4
21.50
25
0
2007/08
87
4
21.75
24
0
2008/09
90
4
22.50
34
1
2009/10
95
4
23.75
32
1
2010/11
103
4
25.75
34
1
2011/12
109
4
27.25
36
2
2012/13
126
5
25.20
33
1
2013/14
127
6
21.17
31
1
2014/15
141
6
23.50
32
1
2015/16
150
7
21.43
26
0
2016/17
146
7
20.86
27
0
2017/18
156
6
26.00
38
2
2019/20
145
6
24.17
33
1
2020/21
132
6
22.00
31
1
2021/22
128
5
25.60
33
1
2022/23
122
5
24.40
32
1
2023/24
113
4
28.25
34
2
2024/25
107
5
21.40
32
1
2025/26
105
5
21.00
24
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 117 in 1977/78 → 135, +18 pupils.
Biggest loss in a single year: 1993/94: 138 in 1983/84 → 105, -33 pupils.
Largest single-class increase: Senior Infants in 2024/25 (11 → 14, +3).
Largest single-class decrease: 3rd Class in 2025/26 (16 → 10, -6).
Largest cohort-step gain: 4th → 5th in 2022/23 (17 → 20, +3).
Largest cohort-step loss: 3rd → 4th in 2025/26 (16 → 15, -1).
Overall: 114 (1974/75) → 105 (2025/26), -9.
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
10
14
12.0
6
Senior Infants
10
15
12.3
6
1st Class
10
15
13.2
6
2nd Class
10
16
13.3
6
3rd Class
10
16
14.7
6
4th Class
14
20
16.3
6
5th Class
15
20
17.8
6
6th Class
15
20
18.2
6
Total
77
156
113.6
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).