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
23.40
2025/26
Mainstream classes
25
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+
2016/17
677
25
27.08
29
0
2017/18
671
25
26.84
29
0
2019/20
642
25
25.68
28
0
2020/21
635
25
25.40
28
0
2021/22
619
25
24.76
26
0
2022/23
614
25
24.56
26
0
2023/24
610
26
23.46
26
0
2024/25
588
25
23.52
26
0
2025/26
585
25
23.40
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest loss in a single year: 2024/25: 623 in 2023/24 → 601, -22 pupils.
Largest single-class increase: 1st Class in 2025/26 (147 → 164, +17).
Largest single-class decrease: 1st Class in 2022/23 (169 → 146, -23).
Largest cohort-step gain: 1st → 2nd in 2025/26 (147 → 161, +14).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (169 → 0, -169).
Overall: 684 (2016/17) → 599 (2025/26), -85.
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
131
157
146.3
6
Senior Infants
143
166
151.5
6
1st Class
146
169
155.8
6
2nd Class
150
169
159.2
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
599
684
641.7
10
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).