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
22.44
2025/26
Mainstream classes
9
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
127
5
25.40
27
0
2007/08
136
5
27.20
31
3
2008/09
138
5
27.60
29
0
2009/10
140
5
28.00
31
3
2010/11
165
6
27.50
32
1
2011/12
179
6
29.83
32
3
2012/13
194
7
27.71
31
2
2013/14
219
8
27.38
34
4
2014/15
225
9
25.00
32
1
2015/16
240
8
30.00
32
6
2016/17
258
9
28.67
31
5
2017/18
276
10
27.60
29
0
2019/20
259
10
25.90
28
0
2020/21
261
12
21.75
29
0
2021/22
244
12
20.33
32
1
2022/23
245
10
24.50
30
1
2023/24
243
10
24.30
30
1
2024/25
215
10
21.50
27
0
2025/26
202
9
22.44
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 140 in 2009/10 → 165, +25 pupils.
Biggest loss in a single year: 1993/94: 179 in 1982/83 → 144, -35 pupils.
Largest single-class increase: Junior Infants in 2025/26 (12 → 26, +14).
Largest single-class decrease: 2nd Class in 2021/22 (41 → 24, -17).
Largest cohort-step gain: 1st → 2nd in 2022/23 (22 → 26, +4).
Largest cohort-step loss: SI → 1st in 2021/22 (25 → 22, -3).
Overall: 150 (1975/76) → 214 (2025/26), 64.
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
32
25.8
6
Senior Infants
12
30
25.7
6
1st Class
22
32
27.3
6
2nd Class
24
41
30.3
6
3rd Class
25
40
31.2
6
4th Class
27
40
31.8
6
5th Class
28
39
32.0
6
6th Class
28
39
33.8
6
Total
93
276
172.0
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).