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
23.41
2025/26
Mainstream classes
27
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
651
23
28.30
34
8
2017/18
696
24
29.00
32
9
2019/20
731
26
28.12
31
8
2020/21
688
28
24.57
30
2
2021/22
678
28
24.21
28
0
2022/23
657
28
23.46
28
0
2023/24
644
28
23.00
28
0
2024/25
631
27
23.37
28
0
2025/26
632
27
23.41
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2017/18: 659 in 2016/17 → 708, +49 pupils.
Biggest loss in a single year: 2020/21: 743 in 2019/20 → 699, -44 pupils.
Largest single-class increase: 5th Class in 2021/22 (166 → 187, +21).
Largest single-class decrease: 5th Class in 2022/23 (187 → 159, -28).
Largest cohort-step gain: 5th → 6th in 2025/26 (154 → 162, +8).
Largest cohort-step loss: 3rd → 4th in 2022/23 (163 → 160, -3).
Overall: 659 (2016/17) → 644 (2025/26), -15.
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
152
168
158.8
6
4th Class
157
186
164.5
6
5th Class
154
187
165.8
6
6th Class
156
186
167.8
6
Total
643
752
686.3
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).