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
19.45
2025/26
Mainstream classes
11
2025/26
Largest class group
28
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
295
14
21.07
27
0
2007/08
294
14
21.00
28
0
2008/09
278
14
19.86
27
0
2009/10
273
14
19.50
29
0
2010/11
262
13
20.15
27
0
2011/12
265
12
22.08
27
0
2012/13
265
13
20.38
27
0
2013/14
255
12
21.25
29
0
2014/15
256
12
21.33
29
0
2015/16
253
12
21.08
29
0
2016/17
243
12
20.25
31
1
2017/18
234
12
19.50
31
1
2019/20
217
11
19.73
30
1
2020/21
207
11
18.82
28
0
2021/22
200
11
18.18
29
0
2022/23
211
11
19.18
30
1
2023/24
204
11
18.55
29
0
2024/25
217
11
19.73
29
0
2025/26
214
11
19.45
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 274 in 2005/06 → 309, +35 pupils.
Biggest loss in a single year: 1993/94: 314 in 1982/83 → 233, -81 pupils.
Largest single-class increase: 4th Class in 2022/23 (14 → 30, +16).
Largest single-class decrease: 4th Class in 2021/22 (33 → 14, -19).
Largest cohort-step gain: 5th → 6th in 2023/24 (18 → 23, +5).
Largest cohort-step loss: SI → 1st in 2022/23 (32 → 27, -5).
Overall: 554 (1975/76) → 240 (2025/26), -314.
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
27
40
32.3
6
Senior Infants
25
34
30.7
6
1st Class
24
33
27.7
6
2nd Class
22
33
28.3
6
3rd Class
16
29
25.0
6
4th Class
14
33
26.3
6
5th Class
18
35
27.0
6
6th Class
23
38
27.8
6
Total
220
554
289.1
40
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).