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
24.15
2025/26
Mainstream classes
20
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+
2009/10
337
14
24.07
31
3
2010/11
318
12
26.50
34
4
2011/12
336
13
25.85
34
3
2012/13
369
14
26.36
35
5
2013/14
414
16
25.88
34
3
2014/15
397
16
24.81
36
4
2015/16
391
15
26.07
34
3
2016/17
404
15
26.93
35
2
2017/18
402
16
25.12
32
2
2019/20
395
16
24.69
33
2
2020/21
417
17
24.53
31
2
2021/22
397
17
23.35
28
0
2022/23
425
17
25.00
32
2
2023/24
471
19
24.79
27
0
2024/25
483
20
24.15
27
0
2025/26
483
20
24.15
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 380 in 2012/13 → 426, +46 pupils.
Biggest loss in a single year: 2021/22: 429 in 2020/21 → 409, -20 pupils.
Largest single-class increase: Senior Infants in 2023/24 (75 → 105, +30).
Largest single-class decrease: Junior Infants in 2021/22 (92 → 73, -19).
Largest cohort-step gain: JI → SI in 2023/24 (96 → 105, +9).
Largest cohort-step loss: SI → 1st in 2024/25 (105 → 51, -54).
Overall: 337 (2009/10) → 495 (2025/26), 158.
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
73
103
91.0
6
Senior Infants
75
105
91.2
6
1st Class
44
55
48.7
6
2nd Class
41
53
48.0
6
3rd Class
33
53
44.5
6
4th Class
35
51
43.8
6
5th Class
31
51
40.8
6
6th Class
28
49
40.0
6
Total
324
495
412.5
17
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).