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
24.18
2025/26
Mainstream classes
40
2025/26
Largest class group
27
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+
2012/13
977
35
27.91
32
11
2013/14
1,020
36
28.33
31
15
2014/15
1,055
37
28.51
31
16
2015/16
1,057
37
28.57
31
16
2016/17
1,105
39
28.33
31
7
2017/18
1,110
39
28.46
30
3
2019/20
1,114
40
27.85
29
0
2020/21
1,100
40
27.50
29
0
2021/22
1,065
40
26.62
29
0
2022/23
1,037
40
25.93
28
0
2023/24
1,006
40
25.15
28
0
2024/25
972
40
24.30
28
0
2025/26
967
40
24.18
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 977 in 2012/13 → 1020, +43 pupils.
Biggest loss in a single year: 2021/22: 1100 in 2020/21 → 1065, -35 pupils.
Largest single-class increase: Senior Infants in 2023/24 (114 → 123, +9).
Largest single-class decrease: Junior Infants in 2023/24 (124 → 112, -12).
Largest cohort-step gain: SI → 1st in 2023/24 (114 → 119, +5).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (138 → 133, -5).
Overall: 977 (2012/13) → 967 (2025/26), -10.
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
112
127
118.5
6
Senior Infants
114
135
121.3
6
1st Class
119
140
125.3
6
2nd Class
117
141
129.0
6
3rd Class
120
140
130.7
6
4th Class
122
141
131.7
6
5th Class
125
141
133.7
6
6th Class
127
139
134.3
6
Total
967
1114
1051.2
14
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).