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
23.00
2025/26
Mainstream classes
7
2025/26
Largest class group
28
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
52
3
17.33
20
0
2007/08
61
3
20.33
23
0
2008/09
61
3
20.33
21
0
2009/10
70
3
23.33
30
1
2010/11
86
4
21.50
25
0
2011/12
93
4
23.25
29
0
2012/13
102
4
25.50
29
0
2013/14
105
4
26.25
28
0
2014/15
120
5
24.00
28
0
2015/16
116
5
23.20
24
0
2016/17
131
5
26.20
30
1
2017/18
137
5
27.40
34
1
2019/20
132
5
26.40
29
0
2020/21
137
6
22.83
33
1
2021/22
153
9
17.00
24
0
2022/23
148
6
24.67
31
2
2023/24
162
7
23.14
29
0
2024/25
157
7
22.43
31
1
2025/26
161
7
23.00
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2023/24: 154 in 2022/23 → 174, +20 pupils.
Biggest loss in a single year: 1997/98: 70 in 1996/97 → 58, -12 pupils.
Largest single-class increase: 1st Class in 2025/26 (14 → 29, +15).
Largest single-class decrease: Junior Infants in 2024/25 (25 → 12, -13).
Largest cohort-step gain: 1st → 2nd in 2025/26 (14 → 18, +4).
Largest cohort-step loss: 1st → 2nd in 2024/25 (25 → 23, -2).
Overall: 82 (1975/76) → 173 (2025/26), 91.
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
25
18.8
6
Senior Infants
14
25
19.7
6
1st Class
14
29
20.5
6
2nd Class
16
23
19.7
6
3rd Class
16
26
20.7
6
4th Class
14
23
19.3
6
5th Class
14
23
18.8
6
6th Class
14
23
17.5
6
Total
50
174
90.9
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).