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
23.45
2025/26
Mainstream classes
11
2025/26
Largest class group
29
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
251
10
25.10
29
0
2007/08
243
10
24.30
30
1
2008/09
267
10
26.70
31
1
2009/10
268
10
26.80
32
3
2010/11
260
11
23.64
29
0
2011/12
262
11
23.82
28
0
2012/13
261
11
23.73
28
0
2013/14
237
11
21.55
27
0
2014/15
243
10
24.30
29
0
2015/16
248
10
24.80
29
0
2016/17
252
10
25.20
28
0
2017/18
278
11
25.27
29
0
2019/20
279
12
23.25
29
0
2020/21
266
12
22.17
25
0
2021/22
262
11
23.82
26
0
2022/23
246
11
22.36
29
0
2023/24
247
12
20.58
26
0
2024/25
253
11
23.00
28
0
2025/26
258
11
23.45
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 269 in 1983/84 → 307, +38 pupils.
Biggest loss in a single year: 2013/14: 295 in 2012/13 → 272, -23 pupils.
Largest single-class increase: 4th Class in 2025/26 (40 → 60, +20).
Largest single-class decrease: 6th Class in 2022/23 (71 → 50, -21).
Largest cohort-step gain: 4th → 5th in 2025/26 (40 → 52, +12).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (47 → 44, -3).
Overall: 205 (1974/75) → 294 (2025/26), 89.
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
5
5
5.0
1
Senior Infants
2
2
2.0
1
1st Class
0
0
0.0
1
2nd Class
40
56
49.7
6
3rd Class
40
67
50.2
6
4th Class
40
60
49.7
6
5th Class
47
66
53.8
6
6th Class
50
71
56.8
6
Total
205
319
267.9
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).