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
26.86
2025/26
Mainstream classes
7
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
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
91
4
22.75
25
0
2007/08
97
4
24.25
31
1
2008/09
100
4
25.00
29
0
2009/10
104
4
26.00
31
1
2010/11
105
4
26.25
29
0
2011/12
106
4
26.50
31
1
2012/13
110
4
27.50
30
1
2013/14
120
4
30.00
32
3
2014/15
126
5
25.20
31
1
2015/16
130
5
26.00
31
2
2016/17
130
5
26.00
32
1
2017/18
138
5
27.60
31
2
2019/20
153
6
25.50
32
1
2020/21
167
6
27.83
31
3
2021/22
176
7
25.14
32
4
2022/23
181
7
25.86
33
3
2023/24
179
7
25.57
33
3
2024/25
177
7
25.29
34
3
2025/26
188
7
26.86
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 87 in 1983/84 → 105, +18 pupils.
Biggest loss in a single year: 1977/78: 91 in 1976/77 → 71, -20 pupils.
Largest single-class increase: Senior Infants in 2021/22 (19 → 29, +10).
Largest single-class decrease: 2nd Class in 2024/25 (31 → 19, -12).
Largest cohort-step gain: SI → 1st in 2025/26 (17 → 23, +6).
Largest cohort-step loss: 4th → 5th in 2023/24 (20 → 18, -2).
Overall: 83 (1974/75) → 200 (2025/26), 117.
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
18
29
22.8
6
Senior Infants
17
29
22.7
6
1st Class
20
31
23.8
6
2nd Class
19
31
23.5
6
3rd Class
20
31
23.0
6
4th Class
18
31
22.7
6
5th Class
18
25
21.0
6
6th Class
17
27
20.5
6
Total
66
200
108.3
43
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).