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
23.33
2025/26
Mainstream classes
12
2025/26
Largest class group
28
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+
2008/09
196
8
24.50
31
2
2009/10
212
8
26.50
33
3
2010/11
220
8
27.50
34
3
2011/12
249
9
27.67
36
4
2012/13
276
10
27.60
36
4
2013/14
275
10
27.50
34
3
2014/15
288
10
28.80
32
4
2015/16
298
11
27.09
40
4
2016/17
315
11
28.64
43
4
2017/18
324
12
27.00
35
4
2019/20
296
12
24.67
34
3
2020/21
293
11
26.64
35
3
2021/22
300
12
25.00
36
2
2022/23
292
12
24.33
33
1
2023/24
295
12
24.58
28
0
2024/25
286
12
23.83
26
0
2025/26
280
12
23.33
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2011/12: 220 in 2010/11 → 249, +29 pupils.
Biggest loss in a single year: 2019/20: 314 in 2018/19 → 296, -18 pupils.
Largest single-class increase: 6th Class in 2021/22 (29 → 44, +15).
Largest single-class decrease: 4th Class in 2022/23 (47 → 34, -13).
Largest cohort-step gain: SI → 1st in 2023/24 (29 → 31, +2).
Largest cohort-step loss: 3rd → 4th in 2024/25 (35 → 33, -2).
Overall: 196 (2008/09) → 291 (2025/26), 95.
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
29
40
35.7
6
Senior Infants
29
41
35.8
6
1st Class
31
41
36.3
6
2nd Class
31
41
35.5
6
3rd Class
31
45
36.7
6
4th Class
33
47
37.0
6
5th Class
34
47
38.7
6
6th Class
29
46
37.2
6
Total
196
324
279.6
18
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).