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
24.45
2025/26
Mainstream classes
11
2025/26
Largest class group
32
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
248
9
27.56
30
2
2007/08
260
9
28.89
34
5
2008/09
269
10
26.90
33
3
2009/10
273
10
27.30
32
3
2010/11
275
10
27.50
32
2
2011/12
281
10
28.10
33
5
2012/13
286
10
28.60
34
3
2013/14
291
11
26.45
36
3
2014/15
286
11
26.00
35
4
2015/16
277
11
25.18
34
2
2016/17
286
11
26.00
35
1
2017/18
299
11
27.18
33
4
2019/20
286
12
23.83
33
2
2020/21
301
11
27.36
31
1
2021/22
286
12
23.83
27
0
2022/23
272
13
20.92
27
0
2023/24
267
11
24.27
30
1
2024/25
269
11
24.45
31
1
2025/26
269
11
24.45
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 132 in 1974/75 → 158, +26 pupils.
Biggest loss in a single year: 1993/94: 166 in 1983/84 → 131, -35 pupils.
Largest single-class increase: 1st Class in 2021/22 (34 → 45, +11).
Largest single-class decrease: Senior Infants in 2021/22 (46 → 27, -19).
Largest cohort-step gain: 3rd → 4th in 2023/24 (37 → 42, +5).
Largest cohort-step loss: 4th → 5th in 2023/24 (39 → 37, -2).
Overall: 132 (1974/75) → 274 (2025/26), 142.
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
24
34
27.5
6
Senior Infants
25
46
30.2
6
1st Class
27
45
32.2
6
2nd Class
28
44
34.3
6
3rd Class
28
45
36.2
6
4th Class
29
45
38.0
6
5th Class
37
46
39.8
6
6th Class
36
46
40.0
6
Total
120
302
213.9
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).