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
20.00
2025/26
Mainstream classes
16
2025/26
Largest class group
23
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
212
11
19.27
29
0
2007/08
207
10
20.70
31
1
2008/09
182
10
18.20
25
0
2009/10
176
10
17.60
24
0
2010/11
176
10
17.60
26
0
2011/12
210
10
21.00
30
1
2012/13
241
12
20.08
29
0
2013/14
271
13
20.85
28
0
2014/15
301
14
21.50
29
0
2015/16
310
14
22.14
34
1
2016/17
335
15
22.33
35
1
2017/18
338
16
21.12
27
0
2019/20
344
16
21.50
28
0
2020/21
329
16
20.56
25
0
2021/22
330
16
20.62
24
0
2022/23
330
16
20.62
24
0
2023/24
327
16
20.44
24
0
2024/25
320
16
20.00
22
0
2025/26
320
16
20.00
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 264 in 1974/75 → 501, +237 pupils.
Biggest loss in a single year: 1993/94: 422 in 1983/84 → 261, -161 pupils.
Largest single-class increase: 4th Class in 2021/22 (40 → 46, +6).
Largest single-class decrease: 3rd Class in 2022/23 (48 → 39, -9).
Largest cohort-step gain: 5th → 6th in 2025/26 (39 → 42, +3).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (41 → 39, -2).
Overall: 264 (1974/75) → 326 (2025/26), 62.
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
37
43
40.2
6
Senior Infants
37
44
40.2
6
1st Class
38
43
39.7
6
2nd Class
38
47
41.2
6
3rd Class
38
48
41.8
6
4th Class
39
47
41.8
6
5th Class
39
45
41.7
6
6th Class
38
44
41.2
6
Total
185
534
311.8
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).