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
19.00
2025/26
Mainstream classes
14
2025/26
Largest class group
27
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
217
11
19.73
30
1
2007/08
222
11
20.18
28
0
2008/09
223
11
20.27
29
0
2009/10
212
11
19.27
28
0
2010/11
211
10
21.10
31
1
2011/12
224
10
22.40
30
1
2012/13
226
11
20.55
31
2
2013/14
228
11
20.73
30
1
2014/15
238
11
21.64
29
0
2015/16
230
11
20.91
29
0
2016/17
230
11
20.91
29
0
2017/18
242
11
22.00
29
0
2019/20
249
12
20.75
29
0
2020/21
243
12
20.25
29
0
2021/22
241
12
20.08
29
0
2022/23
251
12
20.92
30
1
2023/24
254
13
19.54
27
0
2024/25
277
13
21.31
27
0
2025/26
266
14
19.00
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2024/25: 254 in 2023/24 → 277, +23 pupils.
Biggest loss in a single year: 1993/94: 537 in 1982/83 → 266, -271 pupils.
Largest single-class increase: 2nd Class in 2024/25 (24 → 38, +14).
Largest single-class decrease: 1st Class in 2021/22 (38 → 23, -15).
Largest cohort-step gain: 1st → 2nd in 2024/25 (33 → 38, +5).
Largest cohort-step loss: 1st → 2nd in 2025/26 (45 → 41, -4).
Overall: 739 (1975/76) → 266 (2025/26), -473.
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
26
42
32.7
6
Senior Infants
22
41
32.2
6
1st Class
23
45
34.0
6
2nd Class
24
41
32.2
6
3rd Class
25
38
31.3
6
4th Class
26
37
30.0
6
5th Class
27
37
30.8
6
6th Class
27
38
32.2
6
Total
211
756
321.7
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).