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
17.60
2025/26
Mainstream classes
10
2025/26
Largest class group
21
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
12
11.67
14
0
2007/08
141
12
11.75
17
0
2008/09
147
12
12.25
18
0
2009/10
151
12
12.58
17
0
2010/11
153
12
12.75
16
0
2011/12
188
12
15.67
18
0
2012/13
172
12
14.33
18
0
2013/14
168
11
15.27
20
0
2014/15
159
10
15.90
19
0
2015/16
150
9
16.67
18
0
2016/17
155
9
17.22
20
0
2017/18
150
9
16.67
18
0
2019/20
197
10
19.70
26
0
2020/21
195
11
17.73
25
0
2021/22
170
10
17.00
23
0
2022/23
202
11
18.36
22
0
2023/24
176
10
17.60
21
0
2024/25
173
10
17.30
21
0
2025/26
176
10
17.60
21
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1982/83: 517 in 1981/82 → 601, +84 pupils.
Biggest loss in a single year: 1993/94: 601 in 1982/83 → 468, -133 pupils.
Largest single-class increase: 3rd Class in 2022/23 (32 → 62, +30).
Largest single-class decrease: 5th Class in 2023/24 (61 → 35, -26).
Largest cohort-step gain: 4th → 5th in 2022/23 (52 → 61, +9).
Largest cohort-step loss: 4th → 5th in 2025/26 (46 → 42, -4).
Overall: 459 (1980/81) → 198 (2025/26), -261.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
0
0
0.0
1
3rd Class
32
62
47.3
6
4th Class
37
60
50.8
6
5th Class
35
61
51.2
6
6th Class
36
63
54.5
6
Total
172
601
250.9
36
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).