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
22.25
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
104
4
26.00
32
1
2007/08
115
4
28.75
31
2
2008/09
118
5
23.60
26
0
2009/10
134
5
26.80
34
3
2010/11
142
5
28.40
35
2
2011/12
146
6
24.33
33
1
2012/13
153
6
25.50
30
1
2013/14
150
6
25.00
35
1
2014/15
159
6
26.50
29
0
2015/16
164
7
23.43
31
2
2016/17
167
7
23.86
31
2
2017/18
181
7
25.86
32
2
2019/20
184
8
23.00
28
0
2020/21
185
8
23.12
28
0
2021/22
179
8
22.38
28
0
2022/23
182
8
22.75
28
0
2023/24
183
8
22.88
29
0
2024/25
178
8
22.25
29
0
2025/26
178
8
22.25
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 59 in 1983/84 → 95, +36 pupils.
Biggest loss in a single year: 2001/02: 94 in 2000/01 → 83, -11 pupils.
Largest single-class increase: 2nd Class in 2025/26 (15 → 31, +16).
Largest single-class decrease: 2nd Class in 2024/25 (22 → 15, -7).
Largest cohort-step gain: 1st → 2nd in 2025/26 (24 → 31, +7).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (22 → 20, -2).
Overall: 67 (1974/75) → 206 (2025/26), 139.
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
16
30
22.7
6
Senior Infants
16
25
21.7
6
1st Class
16
29
22.3
6
2nd Class
15
31
23.5
6
3rd Class
18
28
22.7
6
4th Class
21
28
23.8
6
5th Class
23
29
25.2
6
6th Class
20
29
24.8
6
Total
41
213
122.3
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).