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
17.43
2025/26
Mainstream classes
7
2025/26
Largest class group
20
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
137
8
17.12
21
0
2007/08
135
9
15.00
16
0
2008/09
129
9
14.33
16
0
2009/10
106
8
13.25
18
0
2010/11
88
7
12.57
17
0
2011/12
91
5
18.20
24
0
2012/13
91
6
15.17
20
0
2013/14
90
5
18.00
21
0
2014/15
89
5
17.80
22
0
2015/16
100
6
16.67
25
0
2016/17
105
6
17.50
27
0
2017/18
108
6
18.00
23
0
2019/20
128
7
18.29
24
0
2020/21
119
7
17.00
22
0
2021/22
113
7
16.14
20
0
2022/23
144
7
20.57
23
0
2023/24
142
7
20.29
22
0
2024/25
136
8
17.00
19
0
2025/26
122
7
17.43
20
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1981/82: 483 in 1980/81 → 521, +38 pupils.
Biggest loss in a single year: 1993/94: 469 in 1983/84 → 287, -182 pupils.
Largest single-class increase: 2nd Class in 2022/23 (11 → 21, +10).
Largest single-class decrease: 6th Class in 2023/24 (21 → 10, -11).
Largest cohort-step gain: 5th → 6th in 2022/23 (12 → 21, +9).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (22 → 16, -6).
Overall: 534 (1975/76) → 122 (2025/26), -412.
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
10
19
15.0
6
Senior Infants
16
23
18.2
6
1st Class
13
21
17.0
6
2nd Class
11
22
17.0
6
3rd Class
9
21
14.8
6
4th Class
9
18
14.2
6
5th Class
11
19
15.3
6
6th Class
10
22
17.8
6
Total
89
580
226.5
42
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).