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
23.20
2025/26
Mainstream classes
10
2025/26
Largest class group
33
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
261
9
29.00
35
5
2007/08
266
10
26.60
35
2
2008/09
271
10
27.10
35
4
2009/10
281
10
28.10
36
4
2010/11
280
10
28.00
35
2
2011/12
287
10
28.70
35
2
2012/13
292
11
26.55
33
1
2013/14
301
11
27.36
33
2
2014/15
302
11
27.45
33
3
2015/16
305
11
27.73
35
2
2016/17
303
11
27.55
31
3
2017/18
293
11
26.64
33
1
2019/20
288
11
26.18
31
2
2020/21
281
11
25.55
31
3
2021/22
272
11
24.73
31
1
2022/23
264
12
22.00
30
2
2023/24
255
11
23.18
32
1
2024/25
239
10
23.90
33
3
2025/26
232
10
23.20
33
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2004/05: 207 in 2003/04 → 227, +20 pupils.
Biggest loss in a single year: 1993/94: 376 in 1983/84 → 274, -102 pupils.
Largest single-class increase: 6th Class in 2021/22 (39 → 45, +6).
Largest single-class decrease: Senior Infants in 2025/26 (33 → 20, -13).
Largest cohort-step gain: JI → SI in 2024/25 (29 → 33, +4).
Largest cohort-step loss: 3rd → 4th in 2024/25 (30 → 28, -2).
Overall: 350 (1979/80) → 238 (2025/26), -112.
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
20
33
29.0
6
1st Class
30
36
31.8
6
2nd Class
28
34
31.2
6
3rd Class
29
37
32.2
6
4th Class
28
40
33.5
6
5th Class
28
44
35.7
6
6th Class
30
45
37.8
6
Total
186
376
267.8
38
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).