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
24.00
2025/26
Mainstream classes
9
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
271
10
27.10
32
3
2007/08
263
10
26.30
33
3
2008/09
265
10
26.50
33
3
2009/10
259
10
25.90
34
3
2010/11
254
10
25.40
35
3
2011/12
249
9
27.67
34
3
2012/13
246
9
27.33
33
4
2013/14
247
9
27.44
33
4
2014/15
248
9
27.56
32
2
2015/16
249
9
27.67
33
4
2016/17
267
10
26.70
32
1
2017/18
263
10
26.30
31
3
2019/20
260
10
26.00
31
2
2020/21
243
10
24.30
29
0
2021/22
245
10
24.50
32
1
2022/23
229
10
22.90
30
1
2023/24
229
9
25.44
29
0
2024/25
200
8
25.00
29
0
2025/26
216
9
24.00
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 298 in 1983/84 → 328, +30 pupils.
Biggest loss in a single year: 2024/25: 229 in 2023/24 → 200, -29 pupils.
Largest single-class increase: 4th Class in 2021/22 (26 → 46, +20).
Largest single-class decrease: 4th Class in 2022/23 (46 → 30, -16).
Largest cohort-step gain: JI → SI in 2025/26 (21 → 24, +3).
Largest cohort-step loss: SI → 1st in 2024/25 (24 → 22, -2).
Overall: 252 (1975/76) → 216 (2025/26), -36.
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
21
35
26.3
6
Senior Infants
22
28
24.5
6
1st Class
22
29
25.5
6
2nd Class
21
29
26.3
6
3rd Class
21
47
30.7
6
4th Class
21
46
30.3
6
5th Class
21
45
31.3
6
6th Class
26
44
32.0
6
Total
200
328
266.3
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).