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
24.65
2025/26
Mainstream classes
17
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+
2006/07
270
10
27.00
33
2
2007/08
295
11
26.82
31
4
2008/09
320
12
26.67
33
4
2009/10
321
12
26.75
34
4
2010/11
340
12
28.33
32
4
2011/12
370
13
28.46
32
5
2012/13
399
15
26.60
33
4
2013/14
401
15
26.73
32
5
2014/15
421
16
26.31
32
5
2015/16
432
16
27.00
31
4
2016/17
431
16
26.94
31
5
2017/18
443
20
22.15
32
2
2019/20
458
18
25.44
30
2
2020/21
449
18
24.94
31
3
2021/22
443
17
26.06
31
1
2022/23
437
18
24.28
30
1
2023/24
427
18
23.72
30
1
2024/25
428
17
25.18
29
0
2025/26
419
17
24.65
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 340 in 2010/11 → 370, +30 pupils.
Biggest loss in a single year: 2003/04: 230 in 2002/03 → 219, -11 pupils.
Largest single-class increase: Junior Infants in 2021/22 (50 → 60, +10).
Largest single-class decrease: Junior Infants in 2025/26 (57 → 46, -11).
Largest cohort-step gain: JI → SI in 2024/25 (48 → 50, +2).
Largest cohort-step loss: 1st → 2nd in 2021/22 (61 → 58, -3).
Overall: 244 (1993/94) → 419 (2025/26), 175.
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
46
60
52.5
6
Senior Infants
49
59
53.7
6
1st Class
50
61
54.0
6
2nd Class
50
58
54.3
6
3rd Class
50
58
55.3
6
4th Class
49
57
54.3
6
5th Class
53
56
54.7
6
6th Class
53
57
55.0
6
Total
219
463
337.3
33
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).