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
23.25
2025/26
Mainstream classes
8
2025/26
Largest class group
31
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
245
12
20.42
26
0
2007/08
258
12
21.50
26
0
2008/09
246
12
20.50
26
0
2009/10
255
11
23.18
31
3
2010/11
234
11
21.27
32
1
2011/12
244
11
22.18
32
2
2012/13
232
10
23.20
32
2
2013/14
235
9
26.11
32
4
2014/15
232
9
25.78
33
4
2015/16
251
9
27.89
33
4
2016/17
247
9
27.44
34
4
2017/18
247
9
27.44
35
4
2019/20
243
9
27.00
35
4
2020/21
216
9
24.00
35
2
2021/22
199
9
22.11
35
1
2022/23
202
8
25.25
37
1
2023/24
182
8
22.75
29
0
2024/25
194
7
27.71
35
2
2025/26
186
8
23.25
31
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 384 in 1975/76 → 414, +30 pupils.
Biggest loss in a single year: 1993/94: 396 in 1983/84 → 319, -77 pupils.
Largest single-class increase: 4th Class in 2022/23 (18 → 37, +19).
Largest single-class decrease: 4th Class in 2021/22 (46 → 18, -28).
Largest cohort-step gain: 5th → 6th in 2025/26 (26 → 31, +5).
Largest cohort-step loss: JI → SI in 2025/26 (27 → 25, -2).
Overall: 364 (1974/75) → 186 (2025/26), -178.
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
11
27
19.0
6
Senior Infants
12
27
20.7
6
1st Class
12
28
20.7
6
2nd Class
12
35
23.5
6
3rd Class
14
35
22.0
6
4th Class
17
46
28.0
6
5th Class
21
44
30.5
6
6th Class
22
45
32.2
6
Total
182
439
283.6
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).