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
25.33
2025/26
Mainstream classes
15
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
423
15
28.20
32
3
2007/08
419
15
27.93
30
2
2008/09
425
15
28.33
30
3
2009/10
427
15
28.47
30
4
2010/11
423
15
28.20
30
1
2011/12
418
15
27.87
29
0
2012/13
419
15
27.93
30
3
2013/14
424
15
28.27
31
3
2014/15
426
15
28.40
32
6
2015/16
415
15
27.67
31
3
2016/17
415
15
27.67
30
3
2017/18
422
15
28.13
30
2
2019/20
407
15
27.13
29
0
2020/21
432
16
27.00
28
0
2021/22
429
16
26.81
28
0
2022/23
427
16
26.69
29
0
2023/24
412
16
25.75
28
0
2024/25
408
16
25.50
28
0
2025/26
380
15
25.33
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 555 in 1978/79 → 583, +28 pupils.
Biggest loss in a single year: 1993/94: 523 in 1982/83 → 443, -80 pupils.
Largest single-class increase: 6th Class in 2024/25 (77 → 102, +25).
Largest single-class decrease: 2nd Class in 2021/22 (107 → 84, -23).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (75 → 78, +3).
Largest cohort-step loss: 3rd → 4th in 2023/24 (84 → 80, -4).
Overall: 581 (1974/75) → 380 (2025/26), -201.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
69
107
82.0
6
3rd Class
75
105
83.7
6
4th Class
75
103
82.2
6
5th Class
78
102
83.5
6
6th Class
77
102
83.3
6
Total
380
588
447.8
42
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).