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
26.25
2025/26
Mainstream classes
8
2025/26
Largest class group
34
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
178
7
25.43
33
1
2007/08
181
7
25.86
30
1
2008/09
178
7
25.43
30
1
2009/10
179
7
25.57
28
0
2010/11
177
7
25.29
32
1
2011/12
180
7
25.71
33
2
2012/13
191
7
27.29
34
2
2013/14
200
7
28.57
31
3
2014/15
219
8
27.38
32
2
2015/16
220
8
27.50
32
2
2016/17
235
9
26.11
32
1
2017/18
237
9
26.33
30
1
2019/20
201
9
22.33
28
0
2020/21
193
8
24.12
31
1
2021/22
187
8
23.38
35
1
2022/23
191
8
23.88
32
1
2023/24
190
9
21.11
27
0
2024/25
201
8
25.12
32
1
2025/26
210
8
26.25
34
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1977/78: 332 in 1976/77 → 357, +25 pupils.
Biggest loss in a single year: 1993/94: 326 in 1983/84 → 269, -57 pupils.
Largest single-class increase: 3rd Class in 2024/25 (27 → 42, +15).
Largest single-class decrease: 5th Class in 2021/22 (43 → 35, -8).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (24 → 27, +3).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (29 → 27, -2).
Overall: 334 (1974/75) → 222 (2025/26), -112.
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
12
12
12.0
1
Senior Infants
0
0
0.0
1
1st Class
22
37
31.5
6
2nd Class
24
39
32.3
6
3rd Class
27
42
32.7
6
4th Class
26
43
31.8
6
5th Class
28
43
32.8
6
6th Class
29
42
34.2
6
Total
154
357
233.8
41
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).