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
23.92
2025/26
Mainstream classes
12
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
266
10
26.60
30
2
2007/08
265
10
26.50
30
1
2008/09
268
10
26.80
30
1
2009/10
272
10
27.20
29
0
2010/11
264
10
26.40
31
1
2011/12
276
10
27.60
31
2
2012/13
275
10
27.50
30
3
2013/14
272
10
27.20
30
2
2014/15
268
10
26.80
30
1
2015/16
259
10
25.90
30
2
2016/17
264
10
26.40
32
2
2017/18
274
10
27.40
32
4
2019/20
297
11
27.00
33
4
2020/21
297
11
27.00
32
4
2021/22
312
12
26.00
32
4
2022/23
303
13
23.31
29
0
2023/24
318
13
24.46
29
0
2024/25
313
13
24.08
28
0
2025/26
287
12
23.92
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1998/99: 161 in 1997/98 → 199, +38 pupils.
Biggest loss in a single year: 1993/94: 396 in 1982/83 → 137, -259 pupils.
Largest single-class increase: 2nd Class in 2023/24 (54 → 77, +23).
Largest single-class decrease: 2nd Class in 2024/25 (77 → 52, -25).
Largest cohort-step gain: 4th → 5th in 2023/24 (65 → 67, +2).
Largest cohort-step loss: 3rd → 4th in 2022/23 (67 → 65, -2).
Overall: 759 (1974/75) → 293 (2025/26), -466.
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
45
77
59.7
6
3rd Class
54
77
62.2
6
4th Class
55
75
62.7
6
5th Class
57
67
61.3
6
6th Class
50
67
60.2
6
Total
105
759
305.7
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).