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
26.40
2025/26
Mainstream classes
25
2025/26
Largest class group
28
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
620
21
29.52
33
11
2007/08
607
21
28.90
33
9
2008/09
595
21
28.33
33
7
2009/10
606
21
28.86
33
6
2010/11
632
22
28.73
33
5
2011/12
660
23
28.70
31
6
2012/13
683
24
28.46
31
5
2013/14
690
24
28.75
31
11
2014/15
688
24
28.67
31
8
2015/16
698
24
29.08
30
12
2016/17
715
24
29.79
31
18
2017/18
715
24
29.79
31
18
2019/20
698
25
27.92
30
13
2020/21
679
25
27.16
30
9
2021/22
667
25
26.68
30
2
2022/23
656
25
26.24
29
0
2023/24
660
25
26.40
29
0
2024/25
665
25
26.60
29
0
2025/26
660
25
26.40
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 604 in 1999/00 → 641, +37 pupils.
Biggest loss in a single year: 1995/96: 721 in 1994/95 → 674, -47 pupils.
Largest single-class increase: Junior Infants in 2021/22 (79 → 84, +5).
Largest single-class decrease: 5th Class in 2021/22 (88 → 79, -9).
Largest cohort-step gain: 3rd → 4th in 2024/25 (78 → 82, +4).
Largest cohort-step loss: 3rd → 4th in 2021/22 (90 → 86, -4).
Overall: 763 (1993/94) → 660 (2025/26), -103.
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
77
84
81.2
6
Senior Infants
80
84
81.5
6
1st Class
80
84
82.3
6
2nd Class
79
89
82.8
6
3rd Class
78
90
84.0
6
4th Class
81
86
83.8
6
5th Class
79
88
84.2
6
6th Class
80
88
84.7
6
Total
595
763
658.0
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).