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
28.25
2025/26
Mainstream classes
8
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
3
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
264
10
26.40
36
4
2007/08
260
10
26.00
34
3
2008/09
253
10
25.30
31
3
2009/10
253
9
28.11
34
5
2010/11
252
9
28.00
35
4
2011/12
246
9
27.33
34
4
2012/13
239
9
26.56
35
4
2013/14
238
9
26.44
36
4
2014/15
231
9
25.67
34
4
2015/16
216
8
27.00
33
3
2016/17
203
8
25.38
33
2
2017/18
209
8
26.12
35
3
2019/20
195
8
24.38
31
1
2020/21
195
8
24.38
31
1
2021/22
206
8
25.75
30
2
2022/23
207
8
25.88
31
2
2023/24
224
8
28.00
32
3
2024/25
231
8
28.88
31
2
2025/26
226
8
28.25
32
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1983/84: 225 in 1982/83 → 251, +26 pupils.
Biggest loss in a single year: 1995/96: 270 in 1994/95 → 255, -15 pupils.
Largest single-class increase: 3rd Class in 2021/22 (16 → 30, +14).
Largest single-class decrease: 5th Class in 2021/22 (31 → 19, -12).
Largest cohort-step gain: JI → SI in 2021/22 (22 → 27, +5).
Largest cohort-step loss: JI → SI in 2024/25 (32 → 28, -4).
Overall: 165 (1974/75) → 238 (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
22
32
27.2
6
Senior Infants
27
30
28.5
6
1st Class
24
31
28.5
6
2nd Class
26
32
29.0
6
3rd Class
16
32
27.3
6
4th Class
17
31
25.7
6
5th Class
19
36
27.0
6
6th Class
18
30
24.7
6
Total
165
283
238.3
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).