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
23.42
2025/26
Mainstream classes
19
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+
2010/11
39
2
19.50
22
0
2011/12
113
6
18.83
25
0
2012/13
192
7
27.43
32
3
2013/14
260
10
26.00
30
2
2014/15
316
12
26.33
30
1
2015/16
342
13
26.31
28
0
2016/17
378
14
27.00
29
0
2017/18
381
15
25.40
28
0
2019/20
401
16
25.06
27
0
2020/21
403
16
25.19
28
0
2021/22
390
16
24.38
26
0
2022/23
374
16
23.38
26
0
2023/24
408
17
24.00
25
0
2024/25
452
18
25.11
27
0
2025/26
445
19
23.42
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 113 in 2011/12 → 192, +79 pupils.
Biggest loss in a single year: 2022/23: 402 in 2021/22 → 386, -16 pupils.
Largest single-class increase: Senior Infants in 2024/25 (47 → 79, +32).
Largest single-class decrease: Senior Infants in 2025/26 (79 → 60, -19).
Largest cohort-step gain: JI → SI in 2024/25 (70 → 79, +9).
Largest cohort-step loss: JI → SI in 2025/26 (64 → 60, -4).
Overall: 39 (2010/11) → 457 (2025/26), 418.
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
41
70
53.5
6
Senior Infants
43
79
55.2
6
1st Class
45
79
55.5
6
2nd Class
45
54
50.7
6
3rd Class
49
53
51.5
6
4th Class
49
55
52.2
6
5th Class
49
54
51.7
6
6th Class
47
53
50.8
6
Total
39
464
340.8
16
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).