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
19.70
2025/26
Mainstream classes
10
2025/26
Largest class group
24
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
315
11
28.64
33
4
2007/08
316
12
26.33
33
4
2008/09
341
13
26.23
33
5
2009/10
320
12
26.67
40
3
2010/11
306
12
25.50
34
4
2011/12
315
12
26.25
35
3
2012/13
322
13
24.77
34
2
2013/14
321
12
26.75
34
3
2014/15
319
12
26.58
36
3
2015/16
313
12
26.08
35
3
2016/17
327
13
25.15
32
1
2017/18
336
13
25.85
34
3
2019/20
361
15
24.07
34
1
2020/21
326
14
23.29
32
1
2021/22
315
14
22.50
29
0
2022/23
274
13
21.08
28
0
2023/24
262
12
21.83
27
0
2024/25
225
11
20.45
25
0
2025/26
197
10
19.70
24
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 226 in 1983/84 → 337, +111 pupils.
Biggest loss in a single year: 2022/23: 320 in 2021/22 → 280, -40 pupils.
Largest single-class increase: 6th Class in 2021/22 (32 → 50, +18).
Largest single-class decrease: 3rd Class in 2024/25 (36 → 24, -12).
Largest cohort-step gain: JI → SI in 2024/25 (18 → 23, +5).
Largest cohort-step loss: 5th → 6th in 2024/25 (45 → 39, -6).
Overall: 190 (1974/75) → 213 (2025/26), 23.
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
18
28
22.3
6
Senior Infants
21
37
27.0
6
1st Class
19
44
29.3
6
2nd Class
22
45
32.8
6
3rd Class
24
46
35.2
6
4th Class
24
46
38.0
6
5th Class
31
50
42.3
6
6th Class
32
50
42.2
6
Total
153
367
278.7
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).