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
19.85
2025/26
Mainstream classes
13
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+
2015/16
307
12
25.58
29
0
2016/17
311
12
25.92
28
0
2017/18
298
12
24.83
28
0
2019/20
308
13
23.69
28
0
2020/21
312
14
22.29
26
0
2021/22
294
14
21.00
25
0
2022/23
278
13
21.38
26
0
2023/24
249
12
20.75
25
0
2024/25
255
13
19.62
22
0
2025/26
258
13
19.85
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 310 in 2017/18 → 320, +10 pupils.
Biggest loss in a single year: 2023/24: 290 in 2022/23 → 261, -29 pupils.
Largest single-class increase: 6th Class in 2022/23 (68 → 86, +18).
Largest single-class decrease: 3rd Class in 2021/22 (82 → 58, -24).
Largest cohort-step gain: 3rd → 4th in 2022/23 (58 → 62, +4).
Largest cohort-step loss: 5th → 6th in 2021/22 (73 → 68, -5).
Overall: 319 (2015/16) → 269 (2025/26), -50.
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
55
82
67.7
6
4th Class
55
89
69.8
6
5th Class
56
89
69.3
6
6th Class
60
86
69.8
6
Total
261
324
300.7
11
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).