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
30
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
181
7
25.86
30
1
2007/08
210
8
26.25
34
1
2008/09
212
8
26.50
31
2
2009/10
215
8
26.88
35
2
2010/11
217
8
27.12
32
2
2011/12
225
8
28.12
32
3
2012/13
221
8
27.62
31
3
2013/14
219
8
27.38
31
2
2014/15
230
8
28.75
33
4
2015/16
231
8
28.88
32
3
2016/17
232
8
29.00
32
4
2017/18
222
8
27.75
31
3
2019/20
222
8
27.75
32
2
2020/21
208
8
26.00
32
1
2021/22
200
8
25.00
32
1
2022/23
206
8
25.75
31
1
2023/24
203
8
25.38
31
1
2024/25
201
8
25.12
30
1
2025/26
197
8
24.62
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 154 in 2005/06 → 190, +36 pupils.
Biggest loss in a single year: 1981/82: 174 in 1980/81 → 153, -21 pupils.
Largest single-class increase: 6th Class in 2021/22 (25 → 32, +7).
Largest single-class decrease: Junior Infants in 2025/26 (23 → 14, -9).
Largest cohort-step gain: JI → SI in 2021/22 (22 → 24, +2).
Largest cohort-step loss: SI → 1st in 2021/22 (29 → 25, -4).
Overall: 232 (1974/75) → 197 (2025/26), -35.
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
31
23.7
6
Senior Infants
24
31
26.8
6
1st Class
23
30
26.7
6
2nd Class
23
30
25.7
6
3rd Class
23
27
25.0
6
4th Class
21
26
24.2
6
5th Class
22
32
25.2
6
6th Class
23
32
25.3
6
Total
135
232
188.0
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).