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
23.88
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+
2006/07
91
4
22.75
26
0
2007/08
115
5
23.00
27
0
2008/09
163
7
23.29
32
1
2009/10
186
7
26.57
34
1
2010/11
233
9
25.89
29
0
2011/12
250
9
27.78
31
2
2012/13
281
11
25.55
32
2
2013/14
326
12
27.17
33
4
2014/15
365
14
26.07
31
3
2015/16
402
15
26.80
32
5
2016/17
429
15
28.60
31
5
2017/18
453
16
28.31
31
6
2019/20
453
16
28.31
30
4
2020/21
439
16
27.44
30
2
2021/22
432
16
27.00
30
5
2022/23
423
16
26.44
30
2
2023/24
405
15
27.00
31
4
2024/25
399
16
24.94
30
1
2025/26
382
16
23.88
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 186 in 2009/10 → 233, +47 pupils.
Biggest loss in a single year: 2025/26: 410 in 2024/25 → 393, -17 pupils.
Largest single-class increase: Senior Infants in 2023/24 (41 → 54, +13).
Largest single-class decrease: Junior Infants in 2023/24 (52 → 31, -21).
Largest cohort-step gain: 2nd → 3rd in 2024/25 (43 → 51, +8).
Largest cohort-step loss: 4th → 5th in 2024/25 (57 → 54, -3).
Overall: 24 (2003/04) → 393 (2025/26), 369.
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
31
52
40.2
6
Senior Infants
34
58
45.0
6
1st Class
41
59
49.3
6
2nd Class
43
59
52.0
6
3rd Class
50
59
55.3
6
4th Class
54
60
57.8
6
5th Class
54
60
57.5
6
6th Class
57
59
58.0
6
Total
24
461
298.7
23
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).