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
26.33
2025/26
Mainstream classes
9
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
3
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
291
10
29.10
33
5
2007/08
288
10
28.80
32
6
2008/09
286
10
28.60
32
5
2009/10
278
10
27.80
32
3
2010/11
273
10
27.30
31
3
2011/12
269
10
26.90
31
2
2012/13
267
10
26.70
30
2
2013/14
260
10
26.00
31
2
2014/15
259
10
25.90
30
2
2015/16
266
10
26.60
30
3
2016/17
272
10
27.20
31
2
2017/18
271
10
27.10
31
1
2019/20
265
10
26.50
29
0
2020/21
264
10
26.40
30
2
2021/22
253
10
25.30
30
2
2022/23
252
10
25.20
31
4
2023/24
236
10
23.60
31
3
2024/25
245
10
24.50
31
2
2025/26
237
9
26.33
31
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 302 in 1974/75 → 328, +26 pupils.
Biggest loss in a single year: 2023/24: 252 in 2022/23 → 236, -16 pupils.
Largest single-class increase: 3rd Class in 2025/26 (29 → 44, +15).
Largest single-class decrease: 6th Class in 2021/22 (50 → 30, -20).
Largest cohort-step gain: 1st → 2nd in 2024/25 (39 → 44, +5).
Largest cohort-step loss: SI → 1st in 2025/26 (26 → 24, -2).
Overall: 302 (1974/75) → 237 (2025/26), -65.
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
36
25.7
6
Senior Infants
23
37
28.0
6
1st Class
24
39
29.5
6
2nd Class
27
44
31.5
6
3rd Class
27
44
31.8
6
4th Class
28
44
32.0
6
5th Class
30
43
32.5
6
6th Class
30
50
36.8
6
Total
236
351
298.2
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).