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
23.50
2025/26
Mainstream classes
6
2025/26
Largest class group
30
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
81
4
20.25
26
0
2007/08
81
4
20.25
23
0
2008/09
97
4
24.25
28
0
2009/10
111
4
27.75
31
1
2010/11
116
4
29.00
35
2
2011/12
133
5
26.60
35
3
2012/13
138
5
27.60
36
3
2013/14
145
5
29.00
36
3
2014/15
150
6
25.00
37
2
2015/16
156
6
26.00
36
2
2016/17
160
7
22.86
33
2
2017/18
152
6
25.33
32
2
2019/20
150
6
25.00
31
2
2020/21
149
10
14.90
23
0
2021/22
143
11
13.00
21
0
2022/23
139
7
19.86
29
0
2023/24
137
6
22.83
30
1
2024/25
153
6
25.50
32
2
2025/26
141
6
23.50
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 98 in 1982/83 → 116, +18 pupils.
Biggest loss in a single year: 1994/95: 116 in 1993/94 → 103, -13 pupils.
Largest single-class increase: Senior Infants in 2024/25 (14 → 23, +9).
Largest single-class decrease: Senior Infants in 2025/26 (23 → 12, -11).
Largest cohort-step gain: 1st → 2nd in 2024/25 (14 → 18, +4).
Largest cohort-step loss: 3rd → 4th in 2025/26 (21 → 19, -2).
Overall: 89 (1975/76) → 141 (2025/26), 52.
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
14
19
15.7
6
Senior Infants
12
23
16.7
6
1st Class
14
22
18.5
6
2nd Class
15
21
18.0
6
3rd Class
15
22
18.5
6
4th Class
15
22
18.7
6
5th Class
15
22
18.7
6
6th Class
15
23
19.0
6
Total
61
160
110.0
40
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).