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
21.44
2025/26
Mainstream classes
16
2025/26
Largest class group
23
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+
2008/09
457
16
28.56
29
0
2009/10
461
16
28.81
30
2
2010/11
461
16
28.81
30
2
2011/12
456
16
28.50
29
0
2012/13
458
16
28.62
29
0
2013/14
460
16
28.75
30
4
2014/15
465
16
29.06
31
3
2015/16
467
16
29.19
30
3
2016/17
455
16
28.44
29
0
2017/18
448
16
28.00
29
0
2019/20
442
16
27.62
30
1
2020/21
420
16
26.25
28
0
2021/22
424
16
26.50
28
0
2022/23
414
16
25.88
28
0
2023/24
383
16
23.94
28
0
2024/25
372
16
23.25
27
0
2025/26
343
16
21.44
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2014/15: 460 in 2013/14 → 465, +5 pupils.
Biggest loss in a single year: 2023/24: 420 in 2022/23 → 389, -31 pupils.
Largest single-class increase: 1st Class in 2021/22 (97 → 113, +16).
Largest single-class decrease: 2nd Class in 2025/26 (110 → 90, -20).
Largest cohort-step gain: JI → SI in 2024/25 (76 → 83, +7).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (112 → 0, -112).
Overall: 457 (2008/09) → 349 (2025/26), -108.
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
76
108
92.2
6
Senior Infants
83
113
99.2
6
1st Class
87
113
101.5
6
2nd Class
90
112
104.8
6
3rd Class
0
0
0.0
1
4th Class
0
0
0.0
1
5th Class
0
0
0.0
1
6th Class
0
0
0.0
1
Total
349
467
436.8
18
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).