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
23.60
2025/26
Mainstream classes
10
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
1
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
199
7
28.43
32
3
2007/08
207
8
25.88
32
2
2008/09
205
8
25.62
30
1
2009/10
210
7
30.00
33
4
2010/11
214
8
26.75
29
0
2011/12
219
8
27.38
29
0
2012/13
225
8
28.12
30
1
2013/14
224
8
28.00
32
1
2014/15
233
8
29.12
32
4
2015/16
253
9
28.11
31
3
2016/17
248
9
27.56
31
3
2017/18
246
9
27.33
31
1
2019/20
250
9
27.78
31
2
2020/21
250
9
27.78
31
3
2021/22
244
10
24.40
30
1
2022/23
245
10
24.50
31
2
2023/24
225
9
25.00
31
2
2024/25
233
9
25.89
31
2
2025/26
236
10
23.60
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 159 in 1974/75 → 186, +27 pupils.
Biggest loss in a single year: 1993/94: 207 in 1983/84 → 179, -28 pupils.
Largest single-class increase: 5th Class in 2021/22 (28 → 50, +22).
Largest single-class decrease: 4th Class in 2021/22 (51 → 27, -24).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (27 → 30, +3).
Largest cohort-step loss: 5th → 6th in 2022/23 (50 → 47, -3).
Overall: 159 (1974/75) → 242 (2025/26), 83.
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
28
37
30.3
6
Senior Infants
27
40
31.0
6
1st Class
25
31
28.3
6
2nd Class
24
31
28.5
6
3rd Class
24
31
28.3
6
4th Class
24
51
31.8
6
5th Class
23
50
31.0
6
6th Class
24
47
30.5
6
Total
159
253
208.5
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).