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
23.54
2025/26
Mainstream classes
13
2025/26
Largest class group
35
2025/26
Classes with 30+ pupils
1
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
281
10
28.10
33
4
2007/08
298
11
27.09
32
3
2008/09
293
11
26.64
37
3
2009/10
270
11
24.55
35
2
2010/11
250
10
25.00
30
1
2011/12
271
9
30.11
32
7
2012/13
289
10
28.90
31
5
2013/14
309
11
28.09
36
4
2014/15
310
12
25.83
30
1
2015/16
318
11
28.91
33
4
2016/17
301
12
25.08
32
1
2017/18
311
11
28.27
35
3
2019/20
311
12
25.92
35
3
2020/21
305
12
25.42
33
2
2021/22
287
12
23.92
34
1
2022/23
314
13
24.15
34
4
2023/24
317
13
24.38
35
3
2024/25
308
13
23.69
33
2
2025/26
306
13
23.54
35
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2001/02: 235 in 2000/01 → 262, +27 pupils.
Biggest loss in a single year: 1993/94: 332 in 1982/83 → 253, -79 pupils.
Largest single-class increase: 1st Class in 2022/23 (43 → 61, +18).
Largest single-class decrease: Senior Infants in 2024/25 (63 → 42, -21).
Largest cohort-step gain: SI → 1st in 2023/24 (49 → 57, +8).
Largest cohort-step loss: 1st → 2nd in 2023/24 (61 → 35, -26).
Overall: 363 (1975/76) → 306 (2025/26), -57.
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
41
61
50.5
6
Senior Infants
42
63
50.8
6
1st Class
43
61
54.3
6
2nd Class
18
35
29.2
6
3rd Class
18
35
28.3
6
4th Class
21
35
30.7
6
5th Class
20
38
30.3
6
6th Class
23
41
32.0
6
Total
228
363
294.0
41
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).