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
21.40
2025/26
Mainstream classes
5
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
1
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
100
4
25.00
30
1
2007/08
93
4
23.25
29
0
2008/09
98
4
24.50
31
1
2009/10
106
4
26.50
30
1
2010/11
105
4
26.25
30
1
2011/12
103
4
25.75
28
0
2012/13
103
4
25.75
30
1
2013/14
104
4
26.00
30
1
2014/15
99
4
24.75
30
1
2015/16
109
4
27.25
30
1
2016/17
114
4
28.50
30
1
2017/18
114
5
22.80
31
1
2019/20
113
5
22.60
28
0
2020/21
113
5
22.60
29
0
2021/22
112
5
22.40
31
1
2022/23
107
5
21.40
29
0
2023/24
109
5
21.80
31
2
2024/25
112
5
22.40
32
1
2025/26
107
5
21.40
34
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 93 in 1977/78 → 367, +274 pupils.
Biggest loss in a single year: 1979/80: 367 in 1978/79 → 127, -240 pupils.
Largest single-class increase: 5th Class in 2025/26 (13 → 20, +7).
Largest single-class decrease: Junior Infants in 2022/23 (15 → 7, -8).
Largest cohort-step gain: JI → SI in 2023/24 (7 → 10, +3).
Largest cohort-step loss: JI → SI in 2022/23 (15 → 14, -1).
Overall: 86 (1974/75) → 107 (2025/26), 21.
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
7
15
10.7
6
Senior Infants
10
18
13.0
6
1st Class
10
17
14.0
6
2nd Class
9
17
14.2
6
3rd Class
12
18
14.7
6
4th Class
13
18
14.8
6
5th Class
11
20
14.3
6
6th Class
11
16
14.3
6
Total
28
367
96.4
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).