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
21.75
2025/26
Mainstream classes
8
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
165
6
27.50
33
3
2007/08
185
7
26.43
30
1
2008/09
205
7
29.29
36
3
2009/10
209
7
29.86
35
3
2010/11
237
9
26.33
35
2
2011/12
239
9
26.56
35
3
2012/13
257
10
25.70
36
2
2013/14
263
10
26.30
36
2
2014/15
288
11
26.18
36
2
2015/16
294
11
26.73
36
4
2016/17
288
11
26.18
37
3
2017/18
288
11
26.18
37
3
2019/20
247
11
22.45
32
1
2020/21
246
10
24.60
31
1
2021/22
232
10
23.20
32
1
2022/23
194
10
19.40
27
0
2023/24
185
9
20.56
27
0
2024/25
181
8
22.62
28
0
2025/26
174
8
21.75
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 209 in 2009/10 → 237, +28 pupils.
Biggest loss in a single year: 1993/94: 157 in 1982/83 → 115, -42 pupils.
Largest single-class increase: 6th Class in 2021/22 (31 → 46, +15).
Largest single-class decrease: Senior Infants in 2022/23 (35 → 12, -23).
Largest cohort-step gain: 1st → 2nd in 2025/26 (17 → 21, +4).
Largest cohort-step loss: JI → SI in 2022/23 (15 → 12, -3).
Overall: 155 (1975/76) → 197 (2025/26), 42.
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
15
36
23.5
6
Senior Infants
12
35
23.2
6
1st Class
11
34
22.8
6
2nd Class
11
33
23.2
6
3rd Class
13
36
25.0
6
4th Class
20
36
27.7
6
5th Class
19
47
29.8
6
6th Class
23
46
30.7
6
Total
99
303
187.8
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).