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
23.83
2025/26
Mainstream classes
6
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
170
6
28.33
30
2
2007/08
157
6
26.17
28
0
2008/09
158
6
26.33
28
0
2009/10
161
6
26.83
30
1
2010/11
155
6
25.83
30
1
2011/12
162
6
27.00
30
1
2012/13
161
6
26.83
30
1
2013/14
158
6
26.33
29
0
2014/15
162
6
27.00
30
1
2015/16
179
7
25.57
30
1
2016/17
181
7
25.86
30
1
2017/18
174
7
24.86
30
1
2019/20
172
6
28.67
30
3
2020/21
170
7
24.29
29
0
2021/22
167
7
23.86
30
1
2022/23
161
7
23.00
28
0
2023/24
158
7
22.57
27
0
2024/25
152
6
25.33
28
0
2025/26
143
6
23.83
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 111 in 1983/84 → 132, +21 pupils.
Biggest loss in a single year: 1977/78: 135 in 1976/77 → 122, -13 pupils.
Largest single-class increase: 1st Class in 2021/22 (9 → 24, +15).
Largest single-class decrease: 2nd Class in 2021/22 (21 → 12, -9).
Largest cohort-step gain: JI → SI in 2021/22 (12 → 15, +3).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (18 → 17, -1).
Overall: 133 (1974/75) → 148 (2025/26), 15.
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
12
22
16.7
6
Senior Infants
15
23
19.5
6
1st Class
9
24
18.0
6
2nd Class
12
23
18.5
6
3rd Class
14
25
19.2
6
4th Class
14
28
21.3
6
5th Class
13
29
23.0
6
6th Class
12
30
23.2
6
Total
110
181
147.7
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).