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
23.38
2025/26
Mainstream classes
8
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
152
6
25.33
28
0
2007/08
154
6
25.67
28
0
2008/09
178
6
29.67
34
3
2009/10
177
7
25.29
30
1
2010/11
165
7
23.57
29
0
2011/12
152
6
25.33
33
1
2012/13
161
6
26.83
31
1
2013/14
167
6
27.83
34
2
2014/15
174
7
24.86
35
1
2015/16
168
7
24.00
34
1
2016/17
167
7
23.86
30
2
2017/18
173
8
21.62
30
1
2019/20
191
8
23.88
31
1
2020/21
180
8
22.50
29
0
2021/22
189
8
23.62
30
1
2022/23
192
8
24.00
30
1
2023/24
196
8
24.50
29
0
2024/25
182
8
22.75
29
0
2025/26
187
8
23.38
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 109 in 1982/83 → 159, +50 pupils.
Biggest loss in a single year: 1978/79: 138 in 1977/78 → 121, -17 pupils.
Largest single-class increase: Junior Infants in 2025/26 (15 → 33, +18).
Largest single-class decrease: Senior Infants in 2021/22 (30 → 21, -9).
Largest cohort-step gain: 1st → 2nd in 2025/26 (24 → 28, +4).
Largest cohort-step loss: SI → 1st in 2023/24 (28 → 27, -1).
Overall: 157 (1975/76) → 211 (2025/26), 54.
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
15
33
23.0
6
Senior Infants
17
30
23.0
6
1st Class
20
31
24.2
6
2nd Class
19
31
25.2
6
3rd Class
20
30
25.2
6
4th Class
19
29
24.2
6
5th Class
20
31
24.2
6
6th Class
20
29
23.7
6
Total
108
219
163.0
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).