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
23.88
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
211
7
30.14
31
6
2007/08
213
8
26.62
28
0
2008/09
211
8
26.38
31
1
2009/10
213
8
26.62
30
1
2010/11
214
8
26.75
30
2
2011/12
211
8
26.38
30
1
2012/13
218
8
27.25
30
1
2013/14
221
8
27.62
29
0
2014/15
216
8
27.00
31
1
2015/16
219
8
27.38
30
1
2016/17
218
8
27.25
29
0
2017/18
214
8
26.75
30
1
2019/20
210
8
26.25
31
1
2020/21
210
8
26.25
29
0
2021/22
202
8
25.25
29
0
2022/23
198
8
24.75
29
0
2023/24
200
8
25.00
29
0
2024/25
201
8
25.12
30
1
2025/26
191
8
23.88
30
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 199 in 2005/06 → 212, +13 pupils.
Biggest loss in a single year: 1993/94: 276 in 1983/84 → 213, -63 pupils.
Largest single-class increase: Senior Infants in 2023/24 (19 → 26, +7).
Largest single-class decrease: 1st Class in 2025/26 (27 → 18, -9).
Largest cohort-step gain: 4th → 5th in 2023/24 (24 → 29, +5).
Largest cohort-step loss: SI → 1st in 2025/26 (21 → 18, -3).
Overall: 354 (1974/75) → 197 (2025/26), -157.
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
26
20.8
6
Senior Infants
19
26
22.7
6
1st Class
18
28
23.7
6
2nd Class
23
30
26.3
6
3rd Class
23
29
27.2
6
4th Class
24
31
27.2
6
5th Class
26
30
27.8
6
6th Class
26
30
27.8
6
Total
193
354
231.0
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).