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
23.50
2025/26
Mainstream classes
8
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
149
6
24.83
30
1
2007/08
147
6
24.50
28
0
2008/09
149
6
24.83
26
0
2009/10
153
6
25.50
28
0
2010/11
152
6
25.33
27
0
2011/12
151
6
25.17
28
0
2012/13
154
6
25.67
29
0
2013/14
156
6
26.00
30
2
2014/15
164
6
27.33
30
1
2015/16
183
7
26.14
30
1
2016/17
198
7
28.29
32
2
2017/18
212
7
30.29
35
4
2019/20
213
8
26.62
29
0
2020/21
216
8
27.00
29
0
2021/22
209
8
26.12
29
0
2022/23
207
8
25.88
28
0
2023/24
201
8
25.12
26
0
2024/25
199
8
24.88
26
0
2025/26
188
8
23.50
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 8 in 1978/79 → 121, +113 pupils.
Biggest loss in a single year: 1980/81: 121 in 1979/80 → 30, -91 pupils.
Largest single-class increase: 6th Class in 2022/23 (22 → 27, +5).
Largest single-class decrease: 6th Class in 2021/22 (27 → 22, -5).
Largest cohort-step gain: SI → 1st in 2021/22 (24 → 26, +2).
Largest cohort-step loss: 5th → 6th in 2021/22 (26 → 22, -4).
Overall: 8 (1978/79) → 194 (2025/26), 186.
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
23
26
24.5
6
Senior Infants
24
26
24.5
6
1st Class
24
27
25.7
6
2nd Class
25
28
25.8
6
3rd Class
24
29
26.2
6
4th Class
25
29
26.8
6
5th Class
23
28
26.0
6
6th Class
21
27
24.8
6
Total
8
216
152.2
39
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).