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
15.60
2025/26
Mainstream classes
15
2025/26
Largest class group
23
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
178
11
16.18
22
0
2007/08
173
11
15.73
21
0
2008/09
180
11
16.36
21
0
2009/10
191
12
15.92
21
0
2010/11
184
11
16.73
21
0
2011/12
207
12
17.25
22
0
2012/13
203
13
15.62
20
0
2013/14
209
13
16.08
20
0
2014/15
220
15
14.67
21
0
2015/16
228
16
14.25
19
0
2016/17
222
16
13.88
18
0
2017/18
233
16
14.56
21
0
2019/20
259
16
16.19
21
0
2020/21
256
16
16.00
20
0
2021/22
253
16
15.81
19
0
2022/23
240
15
16.00
20
0
2023/24
253
16
15.81
21
0
2024/25
249
16
15.56
22
0
2025/26
234
15
15.60
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1982/83: 309 in 1981/82 → 333, +24 pupils.
Biggest loss in a single year: 1993/94: 333 in 1982/83 → 247, -86 pupils.
Largest single-class increase: 1st Class in 2025/26 (23 → 48, +25).
Largest single-class decrease: Junior Infants in 2024/25 (44 → 30, -14).
Largest cohort-step gain: SI → 1st in 2025/26 (43 → 48, +5).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (29 → 25, -4).
Overall: 313 (1975/76) → 264 (2025/26), -49.
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
20
44
30.5
6
Senior Infants
22
43
30.7
6
1st Class
23
48
31.3
6
2nd Class
23
36
30.3
6
3rd Class
25
36
30.7
6
4th Class
25
36
32.0
6
5th Class
29
39
34.2
6
6th Class
28
39
33.3
6
Total
147
333
239.0
39
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).