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
18.70
2025/26
Mainstream classes
10
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
154
9
17.11
22
0
2007/08
168
10
16.80
22
0
2008/09
173
10
17.30
22
0
2009/10
183
11
16.64
22
0
2010/11
188
11
17.09
26
0
2011/12
252
12
21.00
28
0
2012/13
247
12
20.58
27
0
2013/14
227
12
18.92
25
0
2014/15
216
11
19.64
25
0
2015/16
212
10
21.20
26
0
2016/17
201
10
20.10
26
0
2017/18
184
10
18.40
25
0
2019/20
171
9
19.00
27
0
2020/21
166
8
20.75
26
0
2021/22
166
8
20.75
26
0
2022/23
159
9
17.67
23
0
2023/24
194
10
19.40
30
1
2024/25
191
10
19.10
24
0
2025/26
187
10
18.70
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 192 in 1982/83 → 515, +323 pupils.
Biggest loss in a single year: 1999/00: 344 in 1998/99 → 292, -52 pupils.
Largest single-class increase: 5th Class in 2023/24 (14 → 30, +16).
Largest single-class decrease: 6th Class in 2021/22 (26 → 17, -9).
Largest cohort-step gain: SI → 1st in 2025/26 (18 → 26, +8).
Largest cohort-step loss: 1st → 2nd in 2024/25 (27 → 23, -4).
Overall: 119 (1975/76) → 193 (2025/26), 74.
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
15
19
17.3
6
Senior Infants
15
23
19.5
6
1st Class
20
27
23.3
6
2nd Class
21
27
24.0
6
3rd Class
16
30
24.0
6
4th Class
15
32
24.3
6
5th Class
14
30
22.0
6
6th Class
17
30
23.8
6
Total
119
515
229.0
40
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).