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
23.56
2025/26
Mainstream classes
9
2025/26
Largest class group
29
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
179
7
25.57
29
0
2007/08
171
7
24.43
27
0
2008/09
174
6
29.00
32
4
2009/10
175
7
25.00
30
1
2010/11
165
7
23.57
28
0
2011/12
152
6
25.33
29
0
2012/13
148
6
24.67
29
0
2013/14
158
6
26.33
29
0
2014/15
171
6
28.50
31
3
2015/16
173
6
28.83
33
4
2016/17
168
7
24.00
31
2
2017/18
166
6
27.67
33
4
2019/20
174
6
29.00
32
4
2020/21
180
7
25.71
31
2
2021/22
174
7
24.86
32
2
2022/23
205
8
25.62
32
2
2023/24
216
8
27.00
34
3
2024/25
213
9
23.67
31
1
2025/26
212
9
23.56
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 174 in 2021/22 → 205, +31 pupils.
Biggest loss in a single year: 1996/97: 239 in 1995/96 → 209, -30 pupils.
Largest single-class increase: 5th Class in 2022/23 (16 → 32, +16).
Largest single-class decrease: 5th Class in 2021/22 (31 → 16, -15).
Largest cohort-step gain: 5th → 6th in 2022/23 (16 → 25, +9).
Largest cohort-step loss: 3rd → 4th in 2025/26 (31 → 29, -2).
Overall: 212 (1974/75) → 218 (2025/26), 6.
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
30
24.8
6
Senior Infants
22
30
26.0
6
1st Class
15
29
25.0
6
2nd Class
15
30
24.3
6
3rd Class
16
31
24.8
6
4th Class
17
31
23.8
6
5th Class
16
32
25.3
6
6th Class
20
34
26.8
6
Total
148
260
199.5
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).