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
23.83
2025/26
Mainstream classes
12
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
1
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
265
10
26.50
30
1
2007/08
267
10
26.70
29
0
2008/09
273
10
27.30
30
1
2009/10
272
10
27.20
33
3
2010/11
268
10
26.80
32
2
2011/12
266
10
26.60
33
2
2012/13
279
11
25.36
30
2
2013/14
281
10
28.10
36
4
2014/15
279
10
27.90
31
4
2015/16
288
11
26.18
32
3
2016/17
295
11
26.82
31
1
2017/18
299
11
27.18
32
3
2019/20
305
12
25.42
32
2
2020/21
300
12
25.00
28
0
2021/22
291
12
24.25
32
1
2022/23
296
13
22.77
28
0
2023/24
288
12
24.00
29
0
2024/25
288
12
24.00
29
0
2025/26
286
12
23.83
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1996/97: 203 in 1995/96 → 222, +19 pupils.
Biggest loss in a single year: 2004/05: 278 in 2003/04 → 269, -9 pupils.
Largest single-class increase: 5th Class in 2025/26 (27 → 44, +17).
Largest single-class decrease: 4th Class in 2023/24 (40 → 27, -13).
Largest cohort-step gain: SI → 1st in 2025/26 (28 → 30, +2).
Largest cohort-step loss: JI → SI in 2025/26 (41 → 39, -2).
Overall: 148 (1975/76) → 295 (2025/26), 147.
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
41
36.5
6
Senior Infants
28
40
37.2
6
1st Class
29
41
36.2
6
2nd Class
28
42
38.0
6
3rd Class
28
43
38.3
6
4th Class
27
43
38.3
6
5th Class
27
44
37.2
6
6th Class
29
43
37.2
6
Total
148
310
248.0
41
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).