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
19.88
2025/26
Mainstream classes
8
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
246
10
24.60
28
0
2007/08
250
10
25.00
27
0
2008/09
265
10
26.50
32
1
2009/10
280
10
28.00
30
2
2010/11
279
10
27.90
30
1
2011/12
271
10
27.10
29
0
2012/13
267
10
26.70
29
0
2013/14
268
10
26.80
29
0
2014/15
277
10
27.70
30
2
2015/16
263
10
26.30
31
1
2016/17
262
10
26.20
31
1
2017/18
253
10
25.30
29
0
2019/20
251
10
25.10
27
0
2020/21
244
10
24.40
27
0
2021/22
213
10
21.30
26
0
2022/23
220
9
24.44
29
0
2023/24
207
9
23.00
28
0
2024/25
192
8
24.00
27
0
2025/26
159
8
19.88
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2000/01: 213 in 1999/00 → 237, +24 pupils.
Biggest loss in a single year: 1976/77: 637 in 1975/76 → 444, -193 pupils.
Largest single-class increase: 3rd Class in 2023/24 (29 → 77, +48).
Largest single-class decrease: 2nd Class in 2023/24 (47 → 1, -46).
Largest cohort-step gain: 2nd → 3rd in 2024/25 (1 → 34, +33).
Largest cohort-step loss: 3rd → 4th in 2024/25 (77 → 49, -28).
Overall: 637 (1975/76) → 165 (2025/26), -472.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
1
47
28.5
6
3rd Class
29
77
45.3
6
4th Class
28
49
42.0
6
5th Class
27
51
44.8
6
6th Class
28
53
46.2
6
Total
165
637
274.7
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).