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
5
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
146
6
24.33
30
1
2007/08
153
6
25.50
29
0
2008/09
141
7
20.14
32
1
2009/10
133
6
22.17
31
1
2010/11
140
6
23.33
31
1
2011/12
140
5
28.00
35
1
2012/13
153
6
25.50
34
2
2013/14
154
6
25.67
33
1
2014/15
156
6
26.00
31
1
2015/16
149
6
24.83
29
0
2016/17
165
7
23.57
28
0
2017/18
169
6
28.17
33
2
2019/20
156
6
26.00
35
3
2020/21
160
6
26.67
32
3
2021/22
150
10
15.00
22
0
2022/23
145
8
18.12
22
0
2023/24
129
6
21.50
29
0
2024/25
116
8
14.50
18
0
2025/26
115
5
23.00
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1999/00: 103 in 1998/99 → 130, +27 pupils.
Biggest loss in a single year: 2002/03: 158 in 2001/02 → 141, -17 pupils.
Largest single-class increase: 6th Class in 2021/22 (12 → 22, +10).
Largest single-class decrease: Junior Infants in 2021/22 (22 → 12, -10).
Largest cohort-step gain: 1st → 2nd in 2024/25 (10 → 11, +1).
Largest cohort-step loss: JI → SI in 2021/22 (22 → 19, -3).
Overall: 35 (1994/95) → 119 (2025/26), 84.
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
9
22
13.8
6
Senior Infants
10
19
14.8
6
1st Class
10
19
15.8
6
2nd Class
11
20
17.3
6
3rd Class
12
23
18.0
6
4th Class
17
22
19.0
6
5th Class
17
23
20.2
6
6th Class
12
22
18.8
6
Total
35
169
134.8
32
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).