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
23.11
2025/26
Mainstream classes
9
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
292
10
29.20
32
3
2007/08
299
11
27.18
34
3
2008/09
315
11
28.64
32
3
2009/10
318
11
28.91
32
6
2010/11
311
12
25.92
32
3
2011/12
301
11
27.36
32
5
2012/13
310
11
28.18
32
4
2013/14
302
11
27.45
32
5
2014/15
305
11
27.73
31
2
2015/16
306
11
27.82
30
3
2016/17
283
11
25.73
29
0
2017/18
269
11
24.45
29
0
2019/20
255
10
25.50
29
0
2020/21
244
11
22.18
33
1
2021/22
236
10
23.60
34
1
2022/23
221
10
22.10
27
0
2023/24
221
9
24.56
29
0
2024/25
203
9
22.56
28
0
2025/26
208
9
23.11
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 299 in 2007/08 → 315, +16 pupils.
Biggest loss in a single year: 2016/17: 306 in 2015/16 → 283, -23 pupils.
Largest single-class increase: 3rd Class in 2023/24 (26 → 38, +12).
Largest single-class decrease: 4th Class in 2021/22 (38 → 26, -12).
Largest cohort-step gain: JI → SI in 2023/24 (25 → 29, +4).
Largest cohort-step loss: SI → 1st in 2022/23 (29 → 27, -2).
Overall: 305 (2001/02) → 219 (2025/26), -86.
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
15
27
22.8
6
Senior Infants
16
33
25.8
6
1st Class
21
34
27.7
6
2nd Class
21
34
28.0
6
3rd Class
22
38
27.7
6
4th Class
26
38
30.7
6
5th Class
26
38
32.5
6
6th Class
26
37
31.0
6
Total
215
318
279.4
25
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).