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
23.67
2025/26
Mainstream classes
6
2025/26
Largest class group
35
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
145
5
29.00
35
2
2007/08
158
6
26.33
28
0
2008/09
153
6
25.50
27
0
2009/10
153
6
25.50
28
0
2010/11
164
6
27.33
32
1
2011/12
170
6
28.33
31
2
2012/13
173
6
28.83
31
3
2013/14
171
7
24.43
30
1
2014/15
175
6
29.17
35
3
2015/16
175
7
25.00
31
1
2016/17
180
8
22.50
28
0
2017/18
190
7
27.14
34
3
2019/20
182
7
26.00
35
3
2020/21
175
7
25.00
35
1
2021/22
186
7
26.57
37
2
2022/23
176
7
25.14
34
2
2023/24
158
7
22.57
34
1
2024/25
143
8
17.88
27
0
2025/26
142
6
23.67
35
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 164 in 1975/76 → 190, +26 pupils.
Biggest loss in a single year: 1993/94: 212 in 1983/84 → 182, -30 pupils.
Largest single-class increase: 6th Class in 2022/23 (21 → 31, +10).
Largest single-class decrease: Junior Infants in 2022/23 (27 → 15, -12).
Largest cohort-step gain: 2nd → 3rd in 2021/22 (26 → 29, +3).
Largest cohort-step loss: SI → 1st in 2023/24 (25 → 22, -3).
Overall: 155 (1974/75) → 142 (2025/26), -13.
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
27
17.8
6
Senior Infants
13
25
17.7
6
1st Class
15
22
18.0
6
2nd Class
15
26
19.8
6
3rd Class
15
29
21.0
6
4th Class
14
29
22.3
6
5th Class
15
30
22.7
6
6th Class
20
31
24.0
6
Total
136
212
169.4
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).