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
25.05
2025/26
Mainstream classes
19
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
431
15
28.73
34
7
2007/08
441
16
27.56
32
6
2008/09
440
16
27.50
32
4
2009/10
455
16
28.44
31
6
2010/11
455
16
28.44
31
5
2011/12
450
16
28.12
31
3
2012/13
470
17
27.65
31
3
2013/14
462
17
27.18
31
2
2014/15
461
17
27.12
30
2
2015/16
494
18
27.44
30
2
2016/17
511
19
26.89
30
3
2017/18
520
20
26.00
30
1
2019/20
523
20
26.15
31
3
2020/21
496
20
24.80
30
2
2021/22
499
19
26.26
29
0
2022/23
519
20
25.95
29
0
2023/24
495
20
24.75
29
0
2024/25
462
20
23.10
29
0
2025/26
476
19
25.05
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 461 in 2014/15 → 494, +33 pupils.
Biggest loss in a single year: 1993/94: 350 in 1983/84 → 293, -57 pupils.
Largest single-class increase: 6th Class in 2022/23 (47 → 80, +33).
Largest single-class decrease: 4th Class in 2024/25 (84 → 58, -26).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (77 → 82, +5).
Largest cohort-step loss: JI → SI in 2023/24 (51 → 50, -1).
Overall: 359 (1982/83) → 488 (2025/26), 129.
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
50
70
55.5
6
Senior Infants
50
56
53.3
6
1st Class
52
74
57.7
6
2nd Class
56
77
59.8
6
3rd Class
56
82
64.5
6
4th Class
56
84
67.8
6
5th Class
48
83
67.3
6
6th Class
47
83
68.2
6
Total
280
530
422.7
35
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).