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
25.92
2025/26
Mainstream classes
12
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
3
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
216
8
27.00
35
3
2007/08
252
9
28.00
34
3
2008/09
277
10
27.70
32
4
2009/10
302
11
27.45
31
3
2010/11
294
11
26.73
31
3
2011/12
335
12
27.92
32
5
2012/13
361
13
27.77
32
5
2013/14
368
13
28.31
32
6
2014/15
376
14
26.86
34
4
2015/16
375
14
26.79
34
4
2016/17
363
14
25.93
33
4
2017/18
355
14
25.36
33
4
2019/20
326
14
23.29
33
2
2020/21
324
13
24.92
33
3
2021/22
293
13
22.54
33
2
2022/23
294
12
24.50
31
2
2023/24
283
12
23.58
33
3
2024/25
297
12
24.75
33
3
2025/26
311
12
25.92
32
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 294 in 2010/11 → 335, +41 pupils.
Biggest loss in a single year: 1993/94: 220 in 1982/83 → 183, -37 pupils.
Largest single-class increase: 5th Class in 2021/22 (33 → 51, +18).
Largest single-class decrease: 6th Class in 2021/22 (56 → 33, -23).
Largest cohort-step gain: JI → SI in 2023/24 (36 → 40, +4).
Largest cohort-step loss: 3rd → 4th in 2022/23 (43 → 40, -3).
Overall: 131 (1975/76) → 317 (2025/26), 186.
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
27
52
39.8
6
Senior Infants
28
48
37.3
6
1st Class
29
42
35.2
6
2nd Class
31
43
36.5
6
3rd Class
31
43
35.8
6
4th Class
32
51
39.0
6
5th Class
32
51
38.2
6
6th Class
32
56
41.2
6
Total
131
376
246.3
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).