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
19.69
2025/26
Mainstream classes
13
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
308
14
22.00
28
0
2007/08
326
15
21.73
29
0
2008/09
336
16
21.00
27
0
2009/10
346
16
21.62
25
0
2010/11
357
16
22.31
28
0
2011/12
371
16
23.19
28
0
2012/13
372
16
23.25
29
0
2013/14
370
16
23.12
28
0
2014/15
367
16
22.94
28
0
2015/16
361
16
22.56
27
0
2016/17
360
16
22.50
29
0
2017/18
343
16
21.44
26
0
2019/20
330
15
22.00
28
0
2020/21
322
15
21.47
27
0
2021/22
304
15
20.27
27
0
2022/23
293
14
20.93
27
0
2023/24
282
14
20.14
24
0
2024/25
269
14
19.21
24
0
2025/26
256
13
19.69
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 250 in 1983/84 → 340, +90 pupils.
Biggest loss in a single year: 1997/98: 351 in 1996/97 → 325, -26 pupils.
Largest single-class increase: 3rd Class in 2022/23 (32 → 39, +7).
Largest single-class decrease: Senior Infants in 2021/22 (47 → 34, -13).
Largest cohort-step gain: 1st → 2nd in 2025/26 (33 → 36, +3).
Largest cohort-step loss: SI → 1st in 2021/22 (47 → 43, -4).
Overall: 32 (1979/80) → 262 (2025/26), 230.
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
25
33
29.8
6
Senior Infants
27
47
34.2
6
1st Class
29
43
35.8
6
2nd Class
32
44
37.0
6
3rd Class
31
45
37.5
6
4th Class
33
44
38.3
6
5th Class
31
45
38.7
6
6th Class
30
44
37.3
6
Total
32
372
299.7
38
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).