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
23.54
2025/26
Mainstream classes
24
2025/26
Largest class group
25
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
509
19
26.79
31
2
2007/08
513
19
27.00
30
2
2008/09
551
21
26.24
28
0
2009/10
561
21
26.71
28
0
2010/11
577
21
27.48
29
0
2011/12
615
22
27.95
29
0
2012/13
622
22
28.27
31
5
2013/14
671
23
29.17
31
11
2014/15
698
24
29.08
31
14
2015/16
694
24
28.92
31
10
2016/17
680
24
28.33
30
3
2017/18
668
24
27.83
30
1
2019/20
644
24
26.83
27
0
2020/21
642
24
26.75
27
0
2021/22
634
24
26.42
27
0
2022/23
621
24
25.88
27
0
2023/24
589
24
24.54
27
0
2024/25
581
24
24.21
27
0
2025/26
565
24
23.54
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 344 in 1983/84 → 754, +410 pupils.
Biggest loss in a single year: 1999/00: 628 in 1998/99 → 585, -43 pupils.
Largest single-class increase: 2nd Class in 2024/25 (142 → 154, +12).
Largest single-class decrease: 2nd Class in 2023/24 (157 → 142, -15).
Largest cohort-step gain: JI → SI in 2025/26 (141 → 143, +2).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (158 → 0, -158).
Overall: 220 (1982/83) → 565 (2025/26), 345.
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
140
162
150.5
6
Senior Infants
141
162
151.8
6
1st Class
139
162
151.3
6
2nd Class
142
158
151.7
6
3rd Class
0
0
0.0
1
4th Class
0
0
0.0
1
5th Class
0
0
0.0
1
6th Class
0
0
0.0
1
Total
220
754
590.2
35
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).