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
24.50
2025/26
Mainstream classes
8
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
2
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
231
8
28.88
35
4
2007/08
252
9
28.00
36
3
2008/09
274
9
30.44
37
5
2009/10
279
10
27.90
35
3
2010/11
261
10
26.10
33
1
2011/12
268
10
26.80
35
3
2012/13
256
10
25.60
35
2
2013/14
268
10
26.80
37
2
2014/15
253
10
25.30
34
1
2015/16
233
9
25.89
34
2
2016/17
226
9
25.11
34
2
2017/18
222
9
24.67
34
2
2019/20
208
8
26.00
36
1
2020/21
231
9
25.67
30
1
2021/22
213
9
23.67
32
1
2022/23
227
9
25.22
35
4
2023/24
209
8
26.12
34
3
2024/25
203
8
25.38
34
3
2025/26
196
8
24.50
34
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 235 in 2006/07 → 258, +23 pupils.
Biggest loss in a single year: 1993/94: 262 in 1983/84 → 167, -95 pupils.
Largest single-class increase: 4th Class in 2025/26 (21 → 35, +14).
Largest single-class decrease: 1st Class in 2023/24 (33 → 18, -15).
Largest cohort-step gain: 5th → 6th in 2022/23 (24 → 32, +8).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (25 → 21, -4).
Overall: 310 (1974/75) → 202 (2025/26), -108.
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
22.7
6
Senior Infants
17
29
23.7
6
1st Class
18
33
25.0
6
2nd Class
19
33
26.0
6
3rd Class
19
34
26.7
6
4th Class
21
35
29.2
6
5th Class
22
34
28.7
6
6th Class
28
40
32.3
6
Total
134
321
227.5
43
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).