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
23.09
2025/26
Mainstream classes
34
2025/26
Largest class group
29
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+
2020/21
783
31
25.26
30
2
2021/22
796
31
25.68
32
6
2022/23
801
33
24.27
30
1
2023/24
790
34
23.24
29
0
2024/25
784
34
23.06
28
0
2025/26
785
34
23.09
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2021/22: 801 in 2020/21 → 814, +13 pupils.
Biggest loss in a single year: 2023/24: 819 in 2022/23 → 808, -11 pupils.
Largest single-class increase: Junior Infants in 2022/23 (83 → 108, +25).
Largest single-class decrease: 5th Class in 2022/23 (110 → 91, -19).
Largest cohort-step gain: 4th → 5th in 2021/22 (97 → 110, +13).
Largest cohort-step loss: JI → SI in 2023/24 (108 → 104, -4).
Overall: 801 (2020/21) → 803 (2025/26), 2.
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
83
108
93.5
6
Senior Infants
85
104
94.8
6
1st Class
88
108
97.3
6
2nd Class
91
109
98.3
6
3rd Class
83
114
97.8
6
4th Class
90
111
100.0
6
5th Class
91
118
105.0
6
6th Class
94
116
106.0
6
Total
801
819
807.8
6
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).