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
14.92
2025/26
Mainstream classes
12
2025/26
Largest class group
17
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
274
14
19.57
21
0
2007/08
284
15
18.93
22
0
2008/09
277
15
18.47
25
0
2009/10
229
13
17.62
22
0
2010/11
219
12
18.25
23
0
2011/12
210
12
17.50
21
0
2012/13
202
12
16.83
20
0
2013/14
215
12
17.92
26
0
2014/15
227
11
20.64
24
0
2015/16
277
14
19.79
22
0
2016/17
270
14
19.29
22
0
2017/18
262
14
18.71
22
0
2019/20
218
12
18.17
22
0
2020/21
198
11
18.00
21
0
2021/22
193
11
17.55
20
0
2022/23
178
11
16.18
19
0
2023/24
178
11
16.18
19
0
2024/25
198
12
16.50
19
0
2025/26
179
12
14.92
17
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 227 in 2014/15 → 277, +50 pupils.
Biggest loss in a single year: 1979/80: 589 in 1978/79 → 537, -52 pupils.
Largest single-class increase: 2nd Class in 2024/25 (37 → 51, +14).
Largest single-class decrease: 2nd Class in 2023/24 (53 → 37, -16).
Largest cohort-step gain: 1st → 2nd in 2024/25 (44 → 51, +7).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (55 → 0, -55).
Overall: 600 (1974/75) → 191 (2025/26), -409.
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
40
54
46.3
6
Senior Infants
37
54
45.7
6
1st Class
37
57
47.7
6
2nd Class
37
55
49.7
6
3rd Class
0
0
0.0
1
4th Class
0
0
0.0
1
5th Class
0
0
0.0
1
6th Class
0
0
0.0
1
Total
190
606
338.3
42
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).