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
24.78
2025/26
Mainstream classes
9
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
1
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
85
3
28.33
32
1
2007/08
97
4
24.25
28
0
2008/09
105
4
26.25
32
1
2009/10
126
5
25.20
27
0
2010/11
138
5
27.60
32
3
2011/12
154
6
25.67
29
0
2012/13
163
6
27.17
34
2
2013/14
160
6
26.67
34
2
2014/15
165
6
27.50
33
2
2015/16
174
6
29.00
33
3
2016/17
170
7
24.29
33
2
2017/18
174
6
29.00
34
4
2019/20
189
7
27.00
30
1
2020/21
215
8
26.88
32
3
2021/22
224
10
22.40
34
2
2022/23
224
9
24.89
34
2
2023/24
233
9
25.89
32
2
2024/25
234
9
26.00
32
2
2025/26
223
9
24.78
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2020/21: 189 in 2019/20 → 215, +26 pupils.
Biggest loss in a single year: 2004/05: 90 in 2003/04 → 76, -14 pupils.
Largest single-class increase: 6th Class in 2021/22 (18 → 31, +13).
Largest single-class decrease: 3rd Class in 2025/26 (42 → 26, -16).
Largest cohort-step gain: SI → 1st in 2022/23 (35 → 38, +3).
Largest cohort-step loss: 3rd → 4th in 2025/26 (42 → 39, -3).
Overall: 69 (1975/76) → 223 (2025/26), 154.
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
23
35
26.2
6
Senior Infants
22
35
26.7
6
1st Class
22
38
29.2
6
2nd Class
26
41
31.3
6
3rd Class
20
42
30.0
6
4th Class
22
39
28.8
6
5th Class
20
32
27.7
6
6th Class
18
32
25.7
6
Total
68
234
128.8
41
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).