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
20.70
2025/26
Mainstream classes
10
2025/26
Largest class group
27
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
159
6
26.50
29
0
2007/08
150
6
25.00
28
0
2008/09
153
6
25.50
29
0
2009/10
158
6
26.33
30
1
2010/11
158
6
26.33
30
2
2011/12
148
6
24.67
27
0
2012/13
148
6
24.67
27
0
2013/14
147
6
24.50
27
0
2014/15
147
6
24.50
29
0
2015/16
141
6
23.50
27
0
2016/17
140
6
23.33
29
0
2017/18
130
6
21.67
26
0
2019/20
153
6
25.50
30
1
2020/21
155
7
22.14
28
0
2021/22
155
7
22.14
27
0
2022/23
183
8
22.88
30
1
2023/24
202
9
22.44
27
0
2024/25
209
9
23.22
30
1
2025/26
207
10
20.70
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 163 in 1974/75 → 208, +45 pupils.
Biggest loss in a single year: 1993/94: 217 in 1983/84 → 176, -41 pupils.
Largest single-class increase: Junior Infants in 2025/26 (20 → 34, +14).
Largest single-class decrease: 5th Class in 2021/22 (25 → 11, -14).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (17 → 26, +9).
Largest cohort-step loss: 1st → 2nd in 2023/24 (30 → 28, -2).
Overall: 163 (1974/75) → 237 (2025/26), 74.
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
16
34
24.3
6
Senior Infants
22
27
24.0
6
1st Class
16
30
24.0
6
2nd Class
13
28
22.8
6
3rd Class
15
30
24.8
6
4th Class
10
34
23.8
6
5th Class
11
32
24.0
6
6th Class
12
32
22.3
6
Total
150
238
177.8
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).