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
23.18
2025/26
Mainstream classes
11
2025/26
Largest class group
33
2025/26
Classes with 30+ pupils
2
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
269
9
29.89
39
6
2007/08
270
9
30.00
38
6
2008/09
280
9
31.11
39
6
2009/10
261
10
26.10
35
4
2010/11
276
10
27.60
36
5
2011/12
280
10
28.00
37
5
2012/13
272
10
27.20
33
5
2013/14
265
10
26.50
32
4
2014/15
269
10
26.90
35
3
2015/16
267
10
26.70
35
3
2016/17
260
10
26.00
35
4
2017/18
274
10
27.40
35
5
2019/20
253
10
25.30
36
4
2020/21
252
10
25.20
36
4
2021/22
272
11
24.73
35
4
2022/23
265
11
24.09
32
2
2023/24
257
11
23.36
29
0
2024/25
268
11
24.36
33
2
2025/26
255
11
23.18
33
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 70 in 1982/83 → 269, +199 pupils.
Biggest loss in a single year: 2009/10: 287 in 2008/09 → 267, -20 pupils.
Largest single-class increase: Junior Infants in 2021/22 (31 → 52, +21).
Largest single-class decrease: Junior Infants in 2022/23 (52 → 28, -24).
Largest cohort-step gain: SI → 1st in 2023/24 (49 → 52, +3).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (39 → 35, -4).
Overall: 70 (1982/83) → 260 (2025/26), 190.
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
52
33.0
6
Senior Infants
24
49
33.8
6
1st Class
25
52
33.5
6
2nd Class
28
52
35.7
6
3rd Class
24
50
34.0
6
4th Class
25
38
30.8
6
5th Class
24
38
31.8
6
6th Class
25
37
32.2
6
Total
70
290
266.4
34
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).