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
23.31
2025/26
Mainstream classes
16
2025/26
Largest class group
29
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+
2007/08
48
3
16.00
19
0
2008/09
85
4
21.25
27
0
2009/10
136
6
22.67
27
0
2010/11
199
8
24.88
30
1
2011/12
265
10
26.50
30
2
2012/13
319
12
26.58
33
4
2013/14
373
14
26.64
33
4
2014/15
414
15
27.60
34
7
2015/16
442
16
27.62
34
8
2016/17
455
16
28.44
34
5
2017/18
451
16
28.19
34
5
2019/20
431
17
25.35
30
1
2020/21
417
17
24.53
30
1
2021/22
404
16
25.25
29
0
2022/23
405
16
25.31
31
1
2023/24
387
16
24.19
29
0
2024/25
377
16
23.56
29
0
2025/26
373
16
23.31
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 199 in 2010/11 → 265, +66 pupils.
Biggest loss in a single year: 2020/21: 437 in 2019/20 → 423, -14 pupils.
Largest single-class increase: 2nd Class in 2022/23 (39 → 58, +19).
Largest single-class decrease: 2nd Class in 2021/22 (54 → 39, -15).
Largest cohort-step gain: JI → SI in 2022/23 (55 → 56, +1).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (49 → 47, -2).
Overall: 48 (2007/08) → 383 (2025/26), 335.
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
43
55
49.3
6
Senior Infants
42
59
51.3
6
1st Class
39
57
49.7
6
2nd Class
39
58
51.7
6
3rd Class
38
57
50.2
6
4th Class
37
56
48.0
6
5th Class
36
55
48.7
6
6th Class
36
64
50.3
6
Total
48
455
341.3
19
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).