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
25.42
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
291
12
24.25
30
1
2007/08
294
12
24.50
29
0
2008/09
300
12
25.00
29
0
2009/10
298
12
24.83
29
0
2010/11
310
12
25.83
29
0
2011/12
322
12
26.83
32
3
2012/13
322
12
26.83
31
4
2013/14
313
12
26.08
31
4
2014/15
320
12
26.67
30
3
2015/16
325
12
27.08
31
3
2016/17
320
12
26.67
30
1
2017/18
313
12
26.08
30
1
2019/20
310
12
25.83
31
1
2020/21
301
12
25.08
28
0
2021/22
301
12
25.08
28
0
2022/23
289
12
24.08
28
0
2023/24
298
12
24.83
27
0
2024/25
297
12
24.75
27
0
2025/26
305
12
25.42
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 406 in 1978/79 → 439, +33 pupils.
Biggest loss in a single year: 1993/94: 410 in 1983/84 → 289, -121 pupils.
Largest single-class increase: 5th Class in 2022/23 (28 → 54, +26).
Largest single-class decrease: 4th Class in 2022/23 (52 → 24, -28).
Largest cohort-step gain: SI → 1st in 2024/25 (43 → 50, +7).
Largest cohort-step loss: 3rd → 4th in 2022/23 (28 → 24, -4).
Overall: 614 (1974/75) → 312 (2025/26), -302.
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
26
45
32.8
6
Senior Infants
25
47
35.8
6
1st Class
26
50
36.3
6
2nd Class
26
50
37.0
6
3rd Class
27
54
38.3
6
4th Class
24
52
37.7
6
5th Class
27
54
43.2
6
6th Class
27
54
39.7
6
Total
229
614
336.2
43
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).