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
27.33
2025/26
Mainstream classes
6
2025/26
Largest class group
36
2025/26
Classes with 30+ pupils
3
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
107
4
26.75
31
2
2007/08
118
7
16.86
19
0
2008/09
121
6
20.17
27
0
2009/10
123
5
24.60
31
3
2010/11
117
5
23.40
35
1
2011/12
112
5
22.40
33
1
2012/13
113
4
28.25
36
2
2013/14
108
4
27.00
31
2
2014/15
112
4
28.00
36
2
2015/16
117
4
29.25
32
2
2016/17
117
4
29.25
37
3
2017/18
120
5
24.00
30
1
2019/20
122
5
24.40
35
1
2020/21
123
6
20.50
30
1
2021/22
130
5
26.00
30
1
2022/23
143
5
28.60
32
3
2023/24
156
6
26.00
35
2
2024/25
150
6
25.00
36
2
2025/26
164
6
27.33
36
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 41 in 1974/75 → 57, +16 pupils.
Biggest loss in a single year: 1996/97: 81 in 1995/96 → 68, -13 pupils.
Largest single-class increase: 3rd Class in 2025/26 (16 → 27, +11).
Largest single-class decrease: Junior Infants in 2024/25 (22 → 12, -10).
Largest cohort-step gain: JI → SI in 2025/26 (12 → 18, +6).
Largest cohort-step loss: SI → 1st in 2024/25 (25 → 23, -2).
Overall: 41 (1974/75) → 164 (2025/26), 123.
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
12
25
18.8
6
Senior Infants
14
25
19.5
6
1st Class
14
24
19.2
6
2nd Class
13
26
19.2
6
3rd Class
14
27
17.5
6
4th Class
13
20
15.8
6
5th Class
13
21
17.0
6
6th Class
15
21
17.3
6
Total
41
164
95.7
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).