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
27.38
2025/26
Mainstream classes
8
2025/26
Largest class group
30
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
179
6
29.83
34
4
2007/08
190
7
27.14
34
2
2008/09
184
7
26.29
32
2
2009/10
182
7
26.00
32
2
2010/11
190
7
27.14
34
2
2011/12
195
7
27.86
34
3
2012/13
196
7
28.00
33
2
2013/14
198
7
28.29
32
3
2014/15
192
7
27.43
34
3
2015/16
197
7
28.14
34
3
2016/17
206
8
25.75
33
1
2017/18
205
8
25.62
30
1
2019/20
189
7
27.00
33
2
2020/21
183
7
26.14
35
2
2021/22
170
7
24.29
32
2
2022/23
187
7
26.71
34
2
2023/24
213
8
26.62
34
3
2024/25
223
8
27.88
33
3
2025/26
219
8
27.38
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 118 in 1977/78 → 148, +30 pupils.
Biggest loss in a single year: 2002/03: 167 in 2001/02 → 152, -15 pupils.
Largest single-class increase: 3rd Class in 2023/24 (19 → 34, +15).
Largest single-class decrease: 6th Class in 2021/22 (27 → 19, -8).
Largest cohort-step gain: 3rd → 4th in 2023/24 (19 → 25, +6).
Largest cohort-step loss: 4th → 5th in 2025/26 (33 → 28, -5).
Overall: 90 (1974/75) → 219 (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
19
30
25.0
6
Senior Infants
20
30
25.0
6
1st Class
19
30
23.7
6
2nd Class
20
30
24.3
6
3rd Class
19
34
24.5
6
4th Class
22
33
25.8
6
5th Class
20
31
25.2
6
6th Class
19
31
25.7
6
Total
90
223
176.3
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).