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
24.71
2025/26
Mainstream classes
7
2025/26
Largest class group
35
2025/26
Classes with 30+ pupils
2
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
130
5
26.00
32
2
2007/08
122
5
24.40
30
1
2008/09
125
5
25.00
30
2
2009/10
129
5
25.80
32
1
2010/11
133
5
26.60
34
2
2011/12
142
5
28.40
30
2
2012/13
152
5
30.40
35
4
2013/14
146
6
24.33
28
0
2014/15
159
6
26.50
30
2
2015/16
178
7
25.43
30
2
2016/17
182
7
26.00
30
2
2017/18
180
7
25.71
35
2
2019/20
178
7
25.43
30
1
2020/21
181
7
25.86
34
2
2021/22
181
7
25.86
32
2
2022/23
173
7
24.71
34
2
2023/24
170
7
24.29
32
1
2024/25
182
7
26.00
31
1
2025/26
173
7
24.71
35
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 159 in 2014/15 → 178, +19 pupils.
Biggest loss in a single year: 1975/76: 194 in 1974/75 → 175, -19 pupils.
Largest single-class increase: Junior Infants in 2024/25 (20 → 31, +11).
Largest single-class decrease: Junior Infants in 2025/26 (31 → 21, -10).
Largest cohort-step gain: 1st → 2nd in 2023/24 (23 → 25, +2).
Largest cohort-step loss: 4th → 5th in 2025/26 (24 → 21, -3).
Overall: 194 (1974/75) → 173 (2025/26), -21.
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
15
31
21.8
6
Senior Infants
14
30
21.3
6
1st Class
14
23
20.2
6
2nd Class
14
25
21.2
6
3rd Class
19
25
22.0
6
4th Class
19
27
23.5
6
5th Class
20
28
23.3
6
6th Class
20
28
23.3
6
Total
121
202
159.6
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).