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
20.57
2025/26
Mainstream classes
7
2025/26
Largest class group
32
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
267
13
20.54
33
1
2007/08
274
12
22.83
31
2
2008/09
267
12
22.25
32
2
2009/10
273
12
22.75
32
2
2010/11
263
12
21.92
33
2
2011/12
292
13
22.46
29
0
2012/13
319
12
26.58
32
5
2013/14
321
12
26.75
34
2
2014/15
313
12
26.08
35
2
2015/16
296
12
24.67
33
2
2016/17
301
12
25.08
37
3
2017/18
284
12
23.67
32
1
2019/20
271
11
24.64
31
2
2020/21
232
11
21.09
29
0
2021/22
197
9
21.89
30
1
2022/23
181
8
22.62
31
2
2023/24
171
8
21.38
32
2
2024/25
159
8
19.88
30
1
2025/26
144
7
20.57
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1980/81: 275 in 1979/80 → 321, +46 pupils.
Biggest loss in a single year: 1993/94: 262 in 1982/83 → 144, -118 pupils.
Largest single-class increase: Senior Infants in 2024/25 (6 → 22, +16).
Largest single-class decrease: Junior Infants in 2022/23 (25 → 5, -20).
Largest cohort-step gain: 1st → 2nd in 2025/26 (6 → 12, +6).
Largest cohort-step loss: 3rd → 4th in 2021/22 (40 → 35, -5).
Overall: 305 (1974/75) → 163 (2025/26), -142.
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
25
16.0
6
Senior Infants
6
25
18.0
6
1st Class
6
31
19.2
6
2nd Class
12
30
21.0
6
3rd Class
15
40
26.3
6
4th Class
14
35
25.0
6
5th Class
16
37
27.2
6
6th Class
24
45
31.2
6
Total
144
331
263.5
42
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).