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
17.83
2025/26
Mainstream classes
6
2025/26
Largest class group
28
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
104
4
26.00
36
1
2007/08
117
4
29.25
32
2
2008/09
112
5
22.40
28
0
2009/10
117
5
23.40
28
0
2010/11
128
5
25.60
35
1
2011/12
125
5
25.00
30
1
2012/13
128
5
25.60
35
1
2013/14
135
5
27.00
37
2
2014/15
133
5
26.60
30
1
2015/16
137
5
27.40
33
1
2016/17
140
5
28.00
33
1
2017/18
143
5
28.60
34
2
2019/20
148
5
29.60
31
3
2020/21
149
10
14.90
27
0
2021/22
136
8
17.00
24
0
2022/23
129
6
21.50
24
0
2023/24
130
6
21.67
31
2
2024/25
125
7
17.86
31
1
2025/26
107
6
17.83
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 88 in 2005/06 → 104, +16 pupils.
Biggest loss in a single year: 1993/94: 99 in 1983/84 → 80, -19 pupils.
Largest single-class increase: 1st Class in 2025/26 (10 → 22, +12).
Largest single-class decrease: 1st Class in 2024/25 (23 → 10, -13).
Largest cohort-step gain: 1st → 2nd in 2023/24 (14 → 17, +3).
Largest cohort-step loss: SI → 1st in 2024/25 (13 → 10, -3).
Overall: 132 (1974/75) → 119 (2025/26), -13.
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
6
22
14.2
6
Senior Infants
12
23
16.7
6
1st Class
10
23
16.5
6
2nd Class
9
22
16.2
6
3rd Class
11
23
17.5
6
4th Class
11
22
17.3
6
5th Class
12
24
18.5
6
6th Class
10
28
19.3
6
Total
70
149
113.8
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).