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
18.33
2025/26
Mainstream classes
12
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
191
8
23.88
28
0
2007/08
202
8
25.25
30
1
2008/09
201
9
22.33
30
1
2009/10
218
8
27.25
33
2
2010/11
219
9
24.33
32
2
2011/12
223
9
24.78
34
1
2012/13
216
9
24.00
30
1
2013/14
217
9
24.11
30
1
2014/15
233
9
25.89
34
2
2015/16
234
9
26.00
31
3
2016/17
237
9
26.33
32
2
2017/18
247
9
27.44
35
3
2019/20
220
10
22.00
32
4
2020/21
218
9
24.22
32
2
2021/22
199
9
22.11
30
1
2022/23
223
13
17.15
27
0
2023/24
210
12
17.50
26
0
2024/25
216
12
18.00
28
0
2025/26
220
12
18.33
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1981/82: 248 in 1980/81 → 314, +66 pupils.
Biggest loss in a single year: 1993/94: 325 in 1983/84 → 237, -88 pupils.
Largest single-class increase: 5th Class in 2025/26 (25 → 41, +16).
Largest single-class decrease: Junior Infants in 2021/22 (30 → 18, -12).
Largest cohort-step gain: 4th → 5th in 2025/26 (32 → 41, +9).
Largest cohort-step loss: SI → 1st in 2021/22 (32 → 24, -8).
Overall: 223 (1974/75) → 251 (2025/26), 28.
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
33
28.2
6
Senior Infants
22
37
28.3
6
1st Class
21
29
24.0
6
2nd Class
20
31
26.3
6
3rd Class
22
32
27.8
6
4th Class
25
32
29.0
6
5th Class
25
41
30.7
6
6th Class
26
34
30.5
6
Total
187
327
236.2
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).