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
19.50
2025/26
Mainstream classes
14
2025/26
Largest class group
27
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
115
5
23.00
31
1
2007/08
135
5
27.00
30
1
2008/09
150
6
25.00
34
1
2009/10
182
7
26.00
32
2
2010/11
222
8
27.75
32
4
2011/12
247
9
27.44
32
4
2012/13
259
9
28.78
34
4
2013/14
287
10
28.70
34
6
2014/15
313
11
28.45
33
4
2015/16
328
12
27.33
33
4
2016/17
343
12
28.58
34
7
2017/18
349
13
26.85
30
2
2019/20
333
14
23.79
29
0
2020/21
322
13
24.77
31
1
2021/22
299
13
23.00
30
3
2022/23
288
13
22.15
31
2
2023/24
316
13
24.31
34
2
2024/25
305
14
21.79
34
1
2025/26
273
14
19.50
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 182 in 2009/10 → 222, +40 pupils.
Biggest loss in a single year: 1993/94: 204 in 1982/83 → 157, -47 pupils.
Largest single-class increase: Junior Infants in 2023/24 (26 → 50, +24).
Largest single-class decrease: Junior Infants in 2025/26 (36 → 19, -17).
Largest cohort-step gain: 2nd → 3rd in 2023/24 (31 → 38, +7).
Largest cohort-step loss: JI → SI in 2024/25 (50 → 44, -6).
Overall: 126 (1975/76) → 304 (2025/26), 178.
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
19
50
32.0
6
Senior Infants
26
44
32.7
6
1st Class
27
48
35.2
6
2nd Class
31
42
35.5
6
3rd Class
34
43
39.0
6
4th Class
35
49
41.5
6
5th Class
41
50
43.8
6
6th Class
41
56
46.2
6
Total
95
355
205.4
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).