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
26.50
2025/26
Mainstream classes
16
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
581
20
29.05
31
12
2007/08
698
24
29.08
31
13
2008/09
301
11
27.36
29
0
2009/10
364
13
28.00
29
0
2010/11
400
14
28.57
29
0
2011/12
437
15
29.13
31
4
2012/13
477
16
29.81
31
10
2013/14
476
16
29.75
31
11
2014/15
468
16
29.25
31
6
2015/16
465
16
29.06
30
5
2016/17
467
16
29.19
31
8
2017/18
466
16
29.12
31
8
2019/20
446
16
27.88
29
0
2020/21
440
16
27.50
29
0
2021/22
440
16
27.50
28
0
2022/23
429
16
26.81
28
0
2023/24
423
16
26.44
28
0
2024/25
424
16
26.50
28
0
2025/26
424
16
26.50
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 349 in 2004/05 → 470, +121 pupils.
Biggest loss in a single year: 2008/09: 698 in 2007/08 → 301, -397 pupils.
Largest single-class increase: 3rd Class in 2023/24 (100 → 108, +8).
Largest single-class decrease: 3rd Class in 2022/23 (112 → 100, -12).
Largest cohort-step gain: 3rd → 4th in 2023/24 (100 → 104, +4).
Largest cohort-step loss: 4th → 5th in 2023/24 (109 → 103, -6).
Overall: 65 (2001/02) → 429 (2025/26), 364.
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
100
112
108.0
6
4th Class
104
113
109.0
6
5th Class
103
112
107.5
6
6th Class
100
111
106.3
6
Total
65
698
416.0
25
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).