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
22.12
2025/26
Mainstream classes
8
2025/26
Largest class group
29
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
206
7
29.43
33
3
2007/08
226
8
28.25
32
3
2008/09
220
8
27.50
32
2
2009/10
237
8
29.62
31
5
2010/11
231
9
25.67
31
3
2011/12
229
8
28.62
31
2
2012/13
219
8
27.38
33
3
2013/14
224
8
28.00
35
3
2014/15
238
8
29.75
35
4
2015/16
243
9
27.00
35
3
2016/17
238
9
26.44
35
3
2017/18
228
9
25.33
35
3
2019/20
217
8
27.12
34
3
2020/21
221
8
27.62
34
4
2021/22
203
8
25.38
34
2
2022/23
189
8
23.62
34
1
2023/24
174
8
21.75
29
0
2024/25
170
8
21.25
29
0
2025/26
177
8
22.12
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 168 in 2004/05 → 194, +26 pupils.
Biggest loss in a single year: 2021/22: 221 in 2020/21 → 203, -18 pupils.
Largest single-class increase: 1st Class in 2021/22 (18 → 27, +9).
Largest single-class decrease: Junior Infants in 2021/22 (30 → 16, -14).
Largest cohort-step gain: JI → SI in 2025/26 (22 → 25, +3).
Largest cohort-step loss: 3rd → 4th in 2024/25 (27 → 25, -2).
Overall: 107 (1974/75) → 186 (2025/26), 79.
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
16
30
22.5
6
Senior Infants
16
29
22.8
6
1st Class
16
29
21.7
6
2nd Class
16
29
22.2
6
3rd Class
16
29
22.5
6
4th Class
20
33
25.5
6
5th Class
20
34
26.0
6
6th Class
19
34
27.3
6
Total
96
243
172.4
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).