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
24.62
2025/26
Mainstream classes
8
2025/26
Largest class group
33
2025/26
Classes with 30+ pupils
2
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
120
5
24.00
39
1
2007/08
148
6
24.67
39
1
2008/09
175
7
25.00
32
2
2009/10
186
7
26.57
32
1
2010/11
211
8
26.38
32
2
2011/12
205
8
25.62
34
3
2012/13
205
8
25.62
34
3
2013/14
205
8
25.62
33
2
2014/15
182
8
22.75
31
1
2015/16
167
7
23.86
30
1
2016/17
144
6
24.00
34
1
2017/18
128
6
21.33
27
0
2019/20
146
5
29.20
32
3
2020/21
146
6
24.33
31
2
2021/22
156
6
26.00
31
2
2022/23
175
7
25.00
33
2
2023/24
184
7
26.29
32
3
2024/25
192
8
24.00
32
2
2025/26
197
8
24.62
33
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 62 in 2005/06 → 120, +58 pupils.
Biggest loss in a single year: 2014/15: 205 in 2013/14 → 182, -23 pupils.
Largest single-class increase: 2nd Class in 2021/22 (12 → 31, +19).
Largest single-class decrease: Senior Infants in 2021/22 (26 → 17, -9).
Largest cohort-step gain: 1st → 2nd in 2024/25 (26 → 28, +2).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (28 → 26, -2).
Overall: 62 (2005/06) → 203 (2025/26), 141.
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
17
33
24.8
6
Senior Infants
17
32
24.3
6
1st Class
17
31
26.2
6
2nd Class
12
33
24.5
6
3rd Class
13
31
20.7
6
4th Class
13
30
18.5
6
5th Class
13
32
19.5
6
6th Class
14
31
18.2
6
Total
62
211
165.7
21
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).