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
23.00
2025/26
Mainstream classes
11
2025/26
Largest class group
33
2025/26
Classes with 30+ pupils
3
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
119
5
23.80
28
0
2007/08
136
5
27.20
34
2
2008/09
160
6
26.67
32
1
2009/10
175
6
29.17
36
3
2010/11
174
7
24.86
31
1
2011/12
184
7
26.29
34
2
2012/13
207
7
29.57
36
3
2013/14
209
8
26.12
36
2
2014/15
220
8
27.50
35
3
2015/16
219
8
27.38
35
3
2016/17
210
8
26.25
35
3
2017/18
194
8
24.25
32
1
2019/20
210
8
26.25
37
2
2020/21
204
8
25.50
32
2
2021/22
219
8
27.38
34
3
2022/23
225
9
25.00
34
4
2023/24
246
10
24.60
34
4
2024/25
249
10
24.90
33
3
2025/26
253
11
23.00
33
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 136 in 2007/08 → 160, +24 pupils.
Biggest loss in a single year: 2017/18: 218 in 2016/17 → 205, -13 pupils.
Largest single-class increase: 1st Class in 2025/26 (28 → 41, +13).
Largest single-class decrease: Senior Infants in 2025/26 (40 → 31, -9).
Largest cohort-step gain: 3rd → 4th in 2025/26 (29 → 34, +5).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (32 → 29, -3).
Overall: 128 (1975/76) → 276 (2025/26), 148.
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
30
39
33.5
6
Senior Infants
28
40
31.8
6
1st Class
28
41
32.5
6
2nd Class
23
35
30.5
6
3rd Class
22
36
29.2
6
4th Class
20
34
27.8
6
5th Class
19
33
26.8
6
6th Class
19
34
25.0
6
Total
83
276
158.0
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).