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
24.14
2025/26
Mainstream classes
14
2025/26
Largest class group
27
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
288
12
24.00
29
0
2007/08
306
12
25.50
33
4
2008/09
304
12
25.33
34
2
2009/10
300
12
25.00
34
4
2010/11
314
12
26.17
32
3
2011/12
325
12
27.08
35
3
2012/13
315
12
26.25
33
2
2013/14
317
12
26.42
31
2
2014/15
313
12
26.08
33
1
2015/16
315
12
26.25
34
1
2016/17
334
12
27.83
32
3
2017/18
337
13
25.92
30
2
2019/20
338
13
26.00
32
3
2020/21
345
18
19.17
29
0
2021/22
326
15
21.73
29
0
2022/23
359
16
22.44
27
0
2023/24
375
16
23.44
28
0
2024/25
331
16
20.69
27
0
2025/26
338
14
24.14
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 326 in 2021/22 → 359, +33 pupils.
Biggest loss in a single year: 2024/25: 375 in 2023/24 → 331, -44 pupils.
Largest single-class increase: 3rd Class in 2022/23 (36 → 49, +13).
Largest single-class decrease: 3rd Class in 2024/25 (54 → 38, -16).
Largest cohort-step gain: 3rd → 4th in 2025/26 (38 → 48, +10).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (44 → 38, -6).
Overall: 295 (2006/07) → 338 (2025/26), 43.
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
31
44
36.2
6
Senior Infants
32
49
38.2
6
1st Class
30
47
39.5
6
2nd Class
31
51
41.5
6
3rd Class
36
54
44.5
6
4th Class
43
53
47.7
6
5th Class
39
54
48.2
6
6th Class
42
54
50.0
6
Total
295
375
326.4
20
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).