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
18.27
2025/26
Mainstream classes
11
2025/26
Largest class group
21
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
157
7
22.43
27
0
2007/08
166
8
20.75
24
0
2008/09
144
8
18.00
22
0
2009/10
167
8
20.88
28
0
2010/11
163
8
20.38
24
0
2011/12
188
8
23.50
26
0
2012/13
186
8
23.25
26
0
2013/14
187
8
23.38
27
0
2014/15
191
8
23.88
29
0
2015/16
185
8
23.12
28
0
2016/17
169
8
21.12
27
0
2017/18
146
9
16.22
20
0
2019/20
132
8
16.50
20
0
2020/21
118
8
14.75
19
0
2021/22
125
8
15.62
19
0
2022/23
144
8
18.00
21
0
2023/24
172
10
17.20
21
0
2024/25
198
10
19.80
23
0
2025/26
201
11
18.27
21
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 91 in 1974/75 → 158, +67 pupils.
Biggest loss in a single year: 2004/05: 202 in 2003/04 → 178, -24 pupils.
Largest single-class increase: 6th Class in 2024/25 (16 → 30, +14).
Largest single-class decrease: 3rd Class in 2024/25 (27 → 19, -8).
Largest cohort-step gain: JI → SI in 2024/25 (21 → 30, +9).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (21 → 19, -2).
Overall: 91 (1974/75) → 207 (2025/26), 116.
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
24
19.3
6
Senior Infants
12
30
20.8
6
1st Class
16
31
20.5
6
2nd Class
15
27
20.0
6
3rd Class
13
27
19.2
6
4th Class
12
29
19.5
6
5th Class
14
27
20.5
6
6th Class
13
31
20.8
6
Total
91
275
188.0
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).