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
24.00
2025/26
Mainstream classes
9
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
282
10
28.20
35
5
2007/08
281
10
28.10
34
5
2008/09
279
10
27.90
33
4
2009/10
285
10
28.50
36
5
2010/11
297
11
27.00
33
5
2011/12
286
11
26.00
33
4
2012/13
284
11
25.82
32
3
2013/14
250
10
25.00
32
2
2014/15
267
9
29.67
39
6
2015/16
283
10
28.30
32
5
2016/17
284
11
25.82
33
4
2017/18
277
11
25.18
32
4
2019/20
267
10
26.70
33
3
2020/21
258
10
25.80
31
2
2021/22
247
10
24.70
32
2
2022/23
255
10
25.50
31
3
2023/24
247
10
24.70
31
3
2024/25
227
10
22.70
29
0
2025/26
216
9
24.00
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 122 in 1975/76 → 388, +266 pupils.
Biggest loss in a single year: 1993/94: 319 in 1983/84 → 259, -60 pupils.
Largest single-class increase: 6th Class in 2022/23 (30 → 43, +13).
Largest single-class decrease: Junior Infants in 2024/25 (30 → 20, -10).
Largest cohort-step gain: JI → SI in 2022/23 (26 → 31, +5).
Largest cohort-step loss: 3rd → 4th in 2024/25 (31 → 27, -4).
Overall: 111 (1974/75) → 222 (2025/26), 111.
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
31
27.0
6
Senior Infants
21
31
27.8
6
1st Class
27
31
29.2
6
2nd Class
28
32
29.7
6
3rd Class
28
34
30.2
6
4th Class
27
41
31.5
6
5th Class
26
41
32.7
6
6th Class
28
43
34.7
6
Total
111
388
266.0
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).