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
25.78
2025/26
Mainstream classes
18
2025/26
Largest class group
30
2025/26
Classes with 30+ pupils
1
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
471
17
27.71
32
4
2007/08
494
18
27.44
30
1
2008/09
507
18
28.17
30
6
2009/10
510
18
28.33
32
6
2010/11
524
19
27.58
33
4
2011/12
557
19
29.32
33
7
2012/13
579
20
28.95
31
8
2013/14
581
21
27.67
31
7
2014/15
559
21
26.62
30
2
2015/16
544
20
27.20
31
7
2016/17
542
20
27.10
31
5
2017/18
546
20
27.30
31
6
2019/20
564
21
26.86
30
1
2020/21
529
22
24.05
30
1
2021/22
505
21
24.05
30
1
2022/23
506
21
24.10
30
1
2023/24
477
21
22.71
26
0
2024/25
447
20
22.35
27
0
2025/26
464
18
25.78
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1998/99: 415 in 1997/98 → 457, +42 pupils.
Biggest loss in a single year: 2020/21: 568 in 2019/20 → 535, -33 pupils.
Largest single-class increase: 6th Class in 2025/26 (109 → 134, +25).
Largest single-class decrease: 4th Class in 2024/25 (135 → 109, -26).
Largest cohort-step gain: 5th → 6th in 2025/26 (126 → 134, +8).
Largest cohort-step loss: 4th → 5th in 2024/25 (135 → 126, -9).
Overall: 391 (1996/97) → 470 (2025/26), 79.
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
103
132
115.2
6
4th Class
106
136
119.2
6
5th Class
113
141
125.3
6
6th Class
109
143
129.3
6
Total
391
581
499.8
30
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).