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
23.33
2025/26
Mainstream classes
6
2025/26
Largest class group
25
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
128
5
25.60
31
2
2007/08
133
5
26.60
35
2
2008/09
134
5
26.80
32
1
2009/10
124
5
24.80
26
0
2010/11
134
5
26.80
30
1
2011/12
136
5
27.20
30
1
2012/13
136
5
27.20
30
1
2013/14
137
5
27.40
32
1
2014/15
133
5
26.60
28
0
2015/16
130
5
26.00
28
0
2016/17
136
5
27.20
34
1
2017/18
136
5
27.20
31
2
2019/20
130
5
26.00
29
0
2020/21
132
5
26.40
31
1
2021/22
131
6
21.83
30
1
2022/23
127
6
21.17
30
2
2023/24
130
5
26.00
32
2
2024/25
140
5
28.00
34
2
2025/26
140
6
23.33
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 140 in 1983/84 → 153, +13 pupils.
Biggest loss in a single year: 1977/78: 139 in 1976/77 → 125, -14 pupils.
Largest single-class increase: 1st Class in 2021/22 (12 → 19, +7).
Largest single-class decrease: 2nd Class in 2021/22 (18 → 12, -6).
Largest cohort-step gain: 3rd → 4th in 2024/25 (18 → 20, +2).
Largest cohort-step loss: 1st → 2nd in 2022/23 (19 → 18, -1).
Overall: 152 (1974/75) → 140 (2025/26), -12.
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
14
23
17.5
6
Senior Infants
14
23
18.0
6
1st Class
12
20
16.2
6
2nd Class
12
20
16.2
6
3rd Class
13
20
16.0
6
4th Class
13
20
15.8
6
5th Class
14
20
16.8
6
6th Class
13
20
16.8
6
Total
120
153
133.2
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).