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
16.47
2025/26
Mainstream classes
17
2025/26
Largest class group
26
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
165
9
18.33
27
0
2007/08
185
9
20.56
32
2
2008/09
185
10
18.50
26
0
2009/10
192
10
19.20
23
0
2010/11
189
10
18.90
24
0
2011/12
184
10
18.40
30
1
2012/13
198
10
19.80
29
0
2013/14
215
11
19.55
24
0
2014/15
201
11
18.27
23
0
2015/16
191
11
17.36
23
0
2016/17
194
11
17.64
21
0
2017/18
211
11
19.18
23
0
2019/20
257
14
18.36
23
0
2020/21
270
14
19.29
25
0
2021/22
280
15
18.67
25
0
2022/23
269
15
17.93
26
0
2023/24
271
15
18.07
26
0
2024/25
278
16
17.38
27
0
2025/26
280
17
16.47
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2018/19: 240 in 2017/18 → 265, +25 pupils.
Biggest loss in a single year: 1998/99: 237 in 1997/98 → 211, -26 pupils.
Largest single-class increase: 1st Class in 2021/22 (46 → 64, +18).
Largest single-class decrease: 1st Class in 2022/23 (64 → 47, -17).
Largest cohort-step gain: JI → SI in 2025/26 (56 → 66, +10).
Largest cohort-step loss: 1st → 2nd in 2022/23 (64 → 29, -35).
Overall: 237 (1997/98) → 310 (2025/26), 73.
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
45
64
53.7
6
Senior Infants
46
66
52.2
6
1st Class
46
64
50.2
6
2nd Class
14
29
24.0
6
3rd Class
16
30
24.0
6
4th Class
23
32
26.0
6
5th Class
20
34
25.7
6
6th Class
23
27
24.8
6
Total
177
310
234.4
29
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).