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
23.00
2025/26
Mainstream classes
6
2025/26
Largest class group
26
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
140
5
28.00
31
1
2007/08
150
5
30.00
33
3
2008/09
155
6
25.83
31
2
2009/10
159
6
26.50
30
1
2010/11
159
6
26.50
30
1
2011/12
160
6
26.67
29
0
2012/13
173
6
28.83
32
3
2013/14
175
7
25.00
30
1
2014/15
176
7
25.14
30
1
2015/16
184
7
26.29
31
2
2016/17
194
7
27.71
33
3
2017/18
196
7
28.00
31
3
2019/20
189
7
27.00
33
2
2020/21
170
7
24.29
29
0
2021/22
163
7
23.29
28
0
2022/23
161
6
26.83
29
0
2023/24
145
6
24.17
28
0
2024/25
149
6
24.83
29
0
2025/26
138
6
23.00
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1980/81: 139 in 1979/80 → 157, +18 pupils.
Biggest loss in a single year: 2020/21: 189 in 2019/20 → 170, -19 pupils.
Largest single-class increase: Junior Infants in 2024/25 (13 → 25, +12).
Largest single-class decrease: 2nd Class in 2021/22 (26 → 14, -12).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (14 → 17, +3).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (16 → 15, -1).
Overall: 125 (1974/75) → 138 (2025/26), 13.
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
13
25
17.2
6
Senior Infants
14
24
17.7
6
1st Class
14
19
15.7
6
2nd Class
14
26
17.8
6
3rd Class
15
27
19.2
6
4th Class
15
29
21.2
6
5th Class
17
28
22.3
6
6th Class
17
29
23.3
6
Total
121
196
155.6
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).