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
23.94
2025/26
Mainstream classes
16
2025/26
Largest class group
26
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
451
17
26.53
31
1
2007/08
448
17
26.35
30
1
2008/09
448
17
26.35
28
0
2009/10
416
17
24.47
28
0
2010/11
411
16
25.69
28
0
2011/12
441
16
27.56
29
0
2012/13
446
16
27.88
30
2
2013/14
448
16
28.00
31
2
2014/15
424
16
26.50
29
0
2015/16
412
16
25.75
29
0
2016/17
415
16
25.94
29
0
2017/18
390
16
24.38
27
0
2019/20
418
16
26.12
31
3
2020/21
407
16
25.44
31
3
2021/22
405
16
25.31
31
2
2022/23
398
16
24.88
30
1
2023/24
394
16
24.62
27
0
2024/25
381
16
23.81
26
0
2025/26
383
16
23.94
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 641 in 1975/76 → 674, +33 pupils.
Biggest loss in a single year: 1979/80: 635 in 1978/79 → 584, -51 pupils.
Largest single-class increase: 6th Class in 2021/22 (90 → 107, +17).
Largest single-class decrease: 4th Class in 2021/22 (119 → 92, -27).
Largest cohort-step gain: 4th → 5th in 2023/24 (86 → 93, +7).
Largest cohort-step loss: 4th → 5th in 2024/25 (99 → 96, -3).
Overall: 641 (1975/76) → 389 (2025/26), -252.
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
0
0
0.0
1
3rd Class
87
104
94.2
6
4th Class
86
119
98.5
6
5th Class
93
119
102.3
6
6th Class
90
116
100.7
6
Total
387
674
482.1
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).