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
22.60
2025/26
Mainstream classes
10
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
146
5
29.20
33
3
2007/08
147
6
24.50
29
0
2008/09
160
6
26.67
31
2
2009/10
169
6
28.17
31
2
2010/11
157
6
26.17
34
2
2011/12
158
6
26.33
30
1
2012/13
154
6
25.67
29
0
2013/14
151
6
25.17
32
1
2014/15
157
6
26.17
33
1
2015/16
164
6
27.33
34
1
2016/17
171
6
28.50
35
4
2017/18
172
7
24.57
32
2
2019/20
205
8
25.62
31
1
2020/21
207
8
25.88
32
2
2021/22
214
8
26.75
32
3
2022/23
218
9
24.22
30
2
2023/24
213
9
23.67
30
2
2024/25
229
9
25.44
32
2
2025/26
226
10
22.60
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 172 in 2017/18 → 202, +30 pupils.
Biggest loss in a single year: 1994/95: 146 in 1993/94 → 132, -14 pupils.
Largest single-class increase: 2nd Class in 2021/22 (23 → 32, +9).
Largest single-class decrease: 1st Class in 2025/26 (32 → 23, -9).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (25 → 31, +6).
Largest cohort-step loss: JI → SI in 2021/22 (23 → 22, -1).
Overall: 109 (1975/76) → 238 (2025/26), 129.
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
22
29
24.7
6
Senior Infants
22
30
26.0
6
1st Class
23
32
27.5
6
2nd Class
23
32
27.5
6
3rd Class
24
32
28.0
6
4th Class
23
34
29.0
6
5th Class
23
36
29.5
6
6th Class
20
36
27.7
6
Total
94
241
150.7
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).