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
22.86
2025/26
Mainstream classes
7
2025/26
Largest class group
29
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
174
6
29.00
33
3
2007/08
184
7
26.29
34
1
2008/09
182
7
26.00
32
1
2009/10
191
7
27.29
29
0
2010/11
201
7
28.71
33
3
2011/12
218
7
31.14
37
3
2012/13
222
8
27.75
33
2
2013/14
214
8
26.75
32
2
2014/15
211
8
26.38
33
2
2015/16
207
8
25.88
33
1
2016/17
203
8
25.38
32
1
2017/18
195
8
24.38
30
1
2019/20
184
7
26.29
31
1
2020/21
173
7
24.71
31
2
2021/22
172
7
24.57
31
2
2022/23
173
7
24.71
32
2
2023/24
164
7
23.43
33
2
2024/25
161
7
23.00
32
1
2025/26
160
7
22.86
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 201 in 2010/11 → 218, +17 pupils.
Biggest loss in a single year: 1993/94: 239 in 1983/84 → 208, -31 pupils.
Largest single-class increase: 6th Class in 2021/22 (21 → 27, +6).
Largest single-class decrease: 4th Class in 2021/22 (27 → 19, -8).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (21 → 26, +5).
Largest cohort-step loss: JI → SI in 2021/22 (21 → 19, -2).
Overall: 218 (1974/75) → 172 (2025/26), -46.
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
22
18.8
6
Senior Infants
18
22
19.8
6
1st Class
20
23
21.3
6
2nd Class
19
22
21.0
6
3rd Class
19
26
21.2
6
4th Class
18
27
21.5
6
5th Class
18
26
22.2
6
6th Class
20
27
23.3
6
Total
152
260
194.9
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).