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
24.17
2025/26
Mainstream classes
18
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
417
15
27.80
32
2
2007/08
410
15
27.33
31
1
2008/09
411
15
27.40
31
2
2009/10
443
16
27.69
30
1
2010/11
445
16
27.81
31
1
2011/12
449
16
28.06
30
3
2012/13
457
16
28.56
30
4
2013/14
458
16
28.62
32
4
2014/15
476
16
29.75
33
8
2015/16
475
16
29.69
33
7
2016/17
486
18
27.00
30
2
2017/18
477
18
26.50
31
5
2019/20
472
18
26.22
32
4
2020/21
457
18
25.39
30
3
2021/22
458
18
25.44
30
1
2022/23
449
18
24.94
29
0
2023/24
442
18
24.56
30
2
2024/25
439
18
24.39
30
2
2025/26
435
18
24.17
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1981/82: 407 in 1980/81 → 541, +134 pupils.
Biggest loss in a single year: 1993/94: 615 in 1983/84 → 465, -150 pupils.
Largest single-class increase: Senior Infants in 2025/26 (104 → 113, +9).
Largest single-class decrease: Senior Infants in 2023/24 (118 → 108, -10).
Largest cohort-step gain: 1st → 2nd in 2025/26 (109 → 113, +4).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (117 → 0, -117).
Overall: 274 (1979/80) → 437 (2025/26), 163.
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
104
118
109.5
6
Senior Infants
104
118
111.8
6
1st Class
107
119
112.7
6
2nd Class
110
117
113.3
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
274
615
456.2
38
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).