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
26.28
2025/26
Mainstream classes
32
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
554
20
27.70
35
7
2007/08
558
21
26.57
35
6
2008/09
555
21
26.43
35
6
2009/10
556
20
27.80
35
7
2010/11
571
20
28.55
35
7
2011/12
590
20
29.50
35
10
2012/13
644
23
28.00
34
6
2013/14
717
26
27.58
35
9
2014/15
746
27
27.63
35
6
2015/16
813
29
28.03
36
8
2016/17
864
31
27.87
35
10
2017/18
878
32
27.44
34
12
2019/20
889
32
27.78
34
10
2020/21
869
32
27.16
34
8
2021/22
862
32
26.94
33
5
2022/23
852
32
26.62
33
4
2023/24
848
32
26.50
29
0
2024/25
841
32
26.28
30
1
2025/26
841
32
26.28
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 443 in 1974/75 → 516, +73 pupils.
Biggest loss in a single year: 1993/94: 668 in 1983/84 → 498, -170 pupils.
Largest single-class increase: 6th Class in 2024/25 (98 → 117, +19).
Largest single-class decrease: 6th Class in 2023/24 (126 → 98, -28).
Largest cohort-step gain: 4th → 5th in 2023/24 (107 → 116, +9).
Largest cohort-step loss: JI → SI in 2024/25 (103 → 98, -5).
Overall: 443 (1974/75) → 847 (2025/26), 404.
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
84
107
99.3
6
Senior Infants
85
108
99.7
6
1st Class
97
111
104.0
6
2nd Class
100
113
106.2
6
3rd Class
100
114
105.7
6
4th Class
101
127
110.2
6
5th Class
100
127
114.3
6
6th Class
98
126
114.8
6
Total
443
889
638.9
43
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).