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
18.00
2025/26
Mainstream classes
10
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
278
18
15.44
23
0
2007/08
307
20
15.35
20
0
2008/09
288
20
14.40
21
0
2009/10
255
14
18.21
23
0
2010/11
249
14
17.79
27
0
2011/12
303
16
18.94
25
0
2012/13
257
15
17.13
25
0
2013/14
245
14
17.50
25
0
2014/15
239
13
18.38
25
0
2015/16
220
12
18.33
26
0
2016/17
218
11
19.82
28
0
2017/18
195
11
17.73
23
0
2019/20
183
10
18.30
24
0
2020/21
167
9
18.56
28
0
2021/22
169
9
18.78
25
0
2022/23
208
10
20.80
28
0
2023/24
209
11
19.00
29
0
2024/25
193
11
17.55
25
0
2025/26
180
10
18.00
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 325 in 2004/05 → 367, +42 pupils.
Biggest loss in a single year: 2012/13: 314 in 2011/12 → 267, -47 pupils.
Largest single-class increase: Senior Infants in 2022/23 (15 → 30, +15).
Largest single-class decrease: Senior Infants in 2025/26 (30 → 17, -13).
Largest cohort-step gain: SI → 1st in 2022/23 (15 → 27, +12).
Largest cohort-step loss: SI → 1st in 2023/24 (30 → 24, -6).
Overall: 332 (1975/76) → 187 (2025/26), -145.
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
27
23.0
6
Senior Infants
13
30
22.2
6
1st Class
16
29
24.0
6
2nd Class
19
29
23.8
6
3rd Class
18
33
24.0
6
4th Class
15
30
23.3
6
5th Class
18
28
23.8
6
6th Class
25
29
26.3
6
Total
177
415
293.5
42
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).