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
18.50
2025/26
Mainstream classes
10
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
250
11
22.73
28
0
2007/08
219
10
21.90
28
0
2008/09
212
9
23.56
30
1
2009/10
206
9
22.89
29
0
2010/11
198
9
22.00
30
1
2011/12
194
9
21.56
24
0
2012/13
193
9
21.44
27
0
2013/14
173
8
21.62
30
1
2014/15
194
8
24.25
36
2
2015/16
184
8
23.00
35
1
2016/17
195
8
24.38
35
1
2017/18
199
9
22.11
29
0
2019/20
177
9
19.67
28
0
2020/21
191
9
21.22
29
0
2021/22
200
9
22.22
30
1
2022/23
207
10
20.70
26
0
2023/24
195
10
19.50
26
0
2024/25
197
10
19.70
27
0
2025/26
185
10
18.50
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1996/97: 357 in 1995/96 → 380, +23 pupils.
Biggest loss in a single year: 1993/94: 548 in 1982/83 → 347, -201 pupils.
Largest single-class increase: 3rd Class in 2021/22 (29 → 47, +18).
Largest single-class decrease: 3rd Class in 2024/25 (45 → 28, -17).
Largest cohort-step gain: 5th → 6th in 2024/25 (42 → 45, +3).
Largest cohort-step loss: 3rd → 4th in 2024/25 (45 → 40, -5).
Overall: 753 (1974/75) → 185 (2025/26), -568.
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
30
52
40.3
6
3rd Class
28
51
38.7
6
4th Class
25
50
37.5
6
5th Class
30
51
39.5
6
6th Class
28
50
39.8
6
Total
177
753
343.0
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).