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
17.56
2025/26
Mainstream classes
9
2025/26
Largest class group
27
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
183
9
20.33
26
0
2007/08
185
9
20.56
28
0
2008/09
183
9
20.33
25
0
2009/10
183
8
22.88
25
0
2010/11
179
9
19.89
24
0
2011/12
180
8
22.50
25
0
2012/13
183
8
22.88
25
0
2013/14
186
8
23.25
28
0
2014/15
183
8
22.88
26
0
2015/16
181
8
22.62
26
0
2016/17
176
8
22.00
26
0
2017/18
178
8
22.25
28
0
2019/20
176
9
19.56
29
0
2020/21
169
8
21.12
28
0
2021/22
165
8
20.62
27
0
2022/23
163
8
20.38
25
0
2023/24
166
8
20.75
28
0
2024/25
165
9
18.33
27
0
2025/26
158
9
17.56
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 115 in 1999/00 → 141, +26 pupils.
Biggest loss in a single year: 2019/20: 185 in 2018/19 → 176, -9 pupils.
Largest single-class increase: 1st Class in 2025/26 (16 → 27, +11).
Largest single-class decrease: 1st Class in 2021/22 (28 → 17, -11).
Largest cohort-step gain: 3rd → 4th in 2025/26 (15 → 17, +2).
Largest cohort-step loss: SI → 1st in 2024/25 (19 → 16, -3).
Overall: 20 (1995/96) → 164 (2025/26), 144.
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
28
21.8
6
Senior Infants
16
27
21.0
6
1st Class
16
28
21.7
6
2nd Class
16
27
20.7
6
3rd Class
15
25
19.5
6
4th Class
15
26
20.2
6
5th Class
14
25
19.7
6
6th Class
15
26
20.8
6
Total
20
187
158.7
31
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).