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
33
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
115
5
23.00
27
0
2007/08
120
5
24.00
31
1
2008/09
121
5
24.20
27
0
2009/10
127
5
25.40
39
2
2010/11
130
5
26.00
31
1
2011/12
136
5
27.20
34
1
2012/13
146
5
29.20
39
1
2013/14
154
6
25.67
36
2
2014/15
153
6
25.50
37
2
2015/16
154
6
25.67
37
2
2016/17
163
6
27.17
34
2
2017/18
158
6
26.33
33
2
2019/20
179
7
25.57
35
1
2020/21
173
7
24.71
35
2
2021/22
153
8
19.12
28
0
2022/23
152
6
25.33
33
1
2023/24
156
6
26.00
34
1
2024/25
149
6
24.83
42
1
2025/26
141
6
23.50
33
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 148 in 1975/76 → 165, +17 pupils.
Biggest loss in a single year: 1993/94: 174 in 1982/83 → 104, -70 pupils.
Largest single-class increase: 4th Class in 2021/22 (18 → 28, +10).
Largest single-class decrease: 4th Class in 2025/26 (30 → 13, -17).
Largest cohort-step gain: 3rd → 4th in 2024/25 (23 → 30, +7).
Largest cohort-step loss: 4th → 5th in 2025/26 (30 → 23, -7).
Overall: 148 (1975/76) → 141 (2025/26), -7.
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
11
19
14.8
6
Senior Infants
12
23
16.5
6
1st Class
12
25
17.7
6
2nd Class
12
25
17.5
6
3rd Class
12
30
20.7
6
4th Class
13
30
22.0
6
5th Class
17
28
21.8
6
6th Class
17
29
23.0
6
Total
91
179
136.4
41
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).