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
22.50
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
232
9
25.78
39
3
2007/08
234
9
26.00
31
4
2008/09
237
9
26.33
32
4
2009/10
237
8
29.62
34
5
2010/11
235
9
26.11
35
4
2011/12
231
9
25.67
36
3
2012/13
220
8
27.50
34
3
2013/14
216
8
27.00
34
3
2014/15
222
8
27.75
32
2
2015/16
221
8
27.62
32
3
2016/17
217
8
27.12
32
2
2017/18
223
8
27.88
36
3
2019/20
220
8
27.50
35
3
2020/21
208
8
26.00
31
2
2021/22
188
8
23.50
32
1
2022/23
213
8
26.62
33
2
2023/24
207
8
25.88
34
1
2024/25
198
8
24.75
29
0
2025/26
180
8
22.50
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 188 in 2021/22 → 213, +25 pupils.
Biggest loss in a single year: 1997/98: 254 in 1996/97 → 229, -25 pupils.
Largest single-class increase: Junior Infants in 2022/23 (11 → 26, +15).
Largest single-class decrease: Junior Infants in 2025/26 (21 → 11, -10).
Largest cohort-step gain: JI → SI in 2022/23 (11 → 20, +9).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (27 → 23, -4).
Overall: 292 (1975/76) → 192 (2025/26), -100.
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
11
26
18.0
6
Senior Infants
20
26
22.7
6
1st Class
20
27
23.5
6
2nd Class
22
27
24.8
6
3rd Class
22
29
24.8
6
4th Class
25
29
26.7
6
5th Class
26
33
29.5
6
6th Class
27
34
31.0
6
Total
188
292
238.7
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).