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
21.80
2025/26
Mainstream classes
10
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
293
14
20.93
32
1
2007/08
291
14
20.79
28
0
2008/09
289
13
22.23
29
0
2009/10
267
14
19.07
26
0
2010/11
249
12
20.75
28
0
2011/12
259
12
21.58
28
0
2012/13
255
13
19.62
27
0
2013/14
245
11
22.27
31
3
2014/15
242
11
22.00
31
2
2015/16
251
10
25.10
31
4
2016/17
257
10
25.70
31
4
2017/18
271
11
24.64
29
0
2019/20
314
13
24.15
31
1
2020/21
307
13
23.62
30
1
2021/22
287
13
22.08
29
0
2022/23
266
13
20.46
28
0
2023/24
247
11
22.45
28
0
2024/25
246
10
24.60
30
2
2025/26
218
10
21.80
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1982/83: 377 in 1981/82 → 468, +91 pupils.
Biggest loss in a single year: 1993/94: 514 in 1983/84 → 387, -127 pupils.
Largest single-class increase: 5th Class in 2021/22 (30 → 47, +17).
Largest single-class decrease: 3rd Class in 2021/22 (53 → 34, -19).
Largest cohort-step gain: JI → SI in 2024/25 (23 → 29, +6).
Largest cohort-step loss: 3rd → 4th in 2021/22 (53 → 44, -9).
Overall: 377 (1981/82) → 224 (2025/26), -153.
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
22
31
26.5
6
Senior Infants
24
34
28.7
6
1st Class
28
47
33.8
6
2nd Class
24
43
32.7
6
3rd Class
25
53
34.5
6
4th Class
28
53
38.2
6
5th Class
27
47
36.2
6
6th Class
27
44
35.8
6
Total
224
514
319.9
36
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).