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
18.73
2025/26
Mainstream classes
11
2025/26
Largest class group
25
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
241
14
17.21
20
0
2007/08
227
14
16.21
21
0
2008/09
208
14
14.86
19
0
2009/10
196
13
15.08
21
0
2010/11
196
13
15.08
21
0
2011/12
196
11
17.82
23
0
2012/13
200
11
18.18
22
0
2013/14
210
11
19.09
22
0
2014/15
200
11
18.18
23
0
2015/16
224
11
20.36
26
0
2016/17
236
12
19.67
25
0
2017/18
253
13
19.46
25
0
2019/20
270
13
20.77
29
0
2020/21
261
13
20.08
28
0
2021/22
265
13
20.38
27
0
2022/23
246
13
18.92
25
0
2023/24
245
13
18.85
25
0
2024/25
229
12
19.08
26
0
2025/26
206
11
18.73
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2015/16: 200 in 2014/15 → 224, +24 pupils.
Biggest loss in a single year: 1980/81: 592 in 1979/80 → 531, -61 pupils.
Largest single-class increase: Junior Infants in 2021/22 (33 → 48, +15).
Largest single-class decrease: Junior Infants in 2022/23 (48 → 19, -29).
Largest cohort-step gain: SI → 1st in 2022/23 (33 → 35, +2).
Largest cohort-step loss: JI → SI in 2022/23 (48 → 44, -4).
Overall: 592 (1979/80) → 211 (2025/26), -381.
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
19
48
26.5
6
Senior Infants
19
44
28.0
6
1st Class
19
44
29.7
6
2nd Class
20
44
32.8
6
3rd Class
26
41
35.5
6
4th Class
26
38
32.0
6
5th Class
24
36
29.8
6
6th Class
23
41
31.2
6
Total
196
592
295.2
37
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).