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
24.40
2025/26
Mainstream classes
5
2025/26
Largest class group
28
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
164
6
27.33
31
3
2007/08
166
6
27.67
33
2
2008/09
158
6
26.33
32
2
2009/10
160
6
26.67
31
1
2010/11
159
6
26.50
30
1
2011/12
151
6
25.17
33
2
2012/13
142
6
23.67
26
0
2013/14
146
5
29.20
33
3
2014/15
141
6
23.50
26
0
2015/16
140
5
28.00
34
2
2016/17
134
5
26.80
29
0
2017/18
131
5
26.20
33
2
2019/20
119
5
23.80
27
0
2020/21
126
5
25.20
34
2
2021/22
118
6
19.67
26
0
2022/23
114
5
22.80
26
0
2023/24
118
5
23.60
26
0
2024/25
120
5
24.00
28
0
2025/26
122
5
24.40
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 159 in 1974/75 → 175, +16 pupils.
Biggest loss in a single year: 1993/94: 198 in 1982/83 → 177, -21 pupils.
Largest single-class increase: Senior Infants in 2021/22 (11 → 19, +8).
Largest single-class decrease: 4th Class in 2021/22 (16 → 10, -6).
Largest cohort-step gain: 5th → 6th in 2025/26 (13 → 16, +3).
Largest cohort-step loss: 1st → 2nd in 2024/25 (17 → 15, -2).
Overall: 159 (1974/75) → 132 (2025/26), -27.
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
21
16.7
6
Senior Infants
11
19
15.2
6
1st Class
11
19
15.3
6
2nd Class
11
19
14.3
6
3rd Class
9
19
13.5
6
4th Class
10
20
14.2
6
5th Class
11
22
14.8
6
6th Class
11
26
17.3
6
Total
114
202
159.4
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).