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
15.43
2025/26
Mainstream classes
7
2025/26
Largest class group
22
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
210
10
21.00
32
1
2007/08
207
10
20.70
34
1
2008/09
194
10
19.40
26
0
2009/10
206
10
20.60
27
0
2010/11
223
10
22.30
31
1
2011/12
207
10
20.70
27
0
2012/13
203
11
18.45
27
0
2013/14
200
10
20.00
26
0
2014/15
194
10
19.40
29
0
2015/16
183
10
18.30
28
0
2016/17
176
10
17.60
27
0
2017/18
156
9
17.33
26
0
2019/20
141
8
17.62
24
0
2020/21
129
8
16.12
24
0
2021/22
112
8
14.00
21
0
2022/23
116
7
16.57
24
0
2023/24
109
7
15.57
27
0
2024/25
102
7
14.57
21
0
2025/26
108
7
15.43
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 201 in 2005/06 → 223, +22 pupils.
Biggest loss in a single year: 1993/94: 409 in 1982/83 → 194, -215 pupils.
Largest single-class increase: 6th Class in 2025/26 (8 → 19, +11).
Largest single-class decrease: 6th Class in 2024/25 (18 → 8, -10).
Largest cohort-step gain: 3rd → 4th in 2025/26 (10 → 15, +5).
Largest cohort-step loss: SI → 1st in 2021/22 (12 → 10, -2).
Overall: 1069 (1974/75) → 130 (2025/26), -939.
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
9
17
13.8
6
Senior Infants
8
16
13.3
6
1st Class
8
18
14.2
6
2nd Class
10
18
14.0
6
3rd Class
10
19
13.8
6
4th Class
10
17
14.0
6
5th Class
10
21
15.8
6
6th Class
8
24
18.7
6
Total
123
1069
296.0
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).