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
17.60
2025/26
Mainstream classes
15
2025/26
Largest class group
25
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
301
12
25.08
32
4
2007/08
304
12
25.33
30
1
2008/09
293
12
24.42
30
1
2009/10
267
11
24.27
35
3
2010/11
265
11
24.09
34
3
2011/12
281
11
25.55
33
3
2012/13
288
11
26.18
34
5
2013/14
303
11
27.55
35
5
2014/15
306
11
27.82
36
5
2015/16
311
11
28.27
38
6
2016/17
313
12
26.08
32
4
2017/18
312
12
26.00
33
4
2019/20
299
12
24.92
35
2
2020/21
289
13
22.23
30
1
2021/22
273
12
22.75
31
2
2022/23
273
15
18.20
27
0
2023/24
274
15
18.27
28
0
2024/25
263
15
17.53
28
0
2025/26
264
15
17.60
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 300 in 2005/06 → 324, +24 pupils.
Biggest loss in a single year: 2009/10: 316 in 2008/09 → 294, -22 pupils.
Largest single-class increase: 4th Class in 2024/25 (27 → 38, +11).
Largest single-class decrease: 3rd Class in 2021/22 (40 → 31, -9).
Largest cohort-step gain: 5th → 6th in 2025/26 (28 → 38, +10).
Largest cohort-step loss: 1st → 2nd in 2022/23 (36 → 34, -2).
Overall: 297 (2004/05) → 281 (2025/26), -16.
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
28
35
31.3
6
Senior Infants
28
38
33.7
6
1st Class
27
37
32.3
6
2nd Class
28
36
31.8
6
3rd Class
27
40
33.2
6
4th Class
27
40
36.0
6
5th Class
28
43
37.5
6
6th Class
35
47
41.2
6
Total
280
326
302.0
22
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).