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
23.46
2025/26
Mainstream classes
13
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
301
10
30.10
34
6
2007/08
303
11
27.55
32
4
2008/09
294
11
26.73
31
3
2009/10
293
11
26.64
30
3
2010/11
308
11
28.00
34
8
2011/12
301
11
27.36
32
5
2012/13
295
11
26.82
31
4
2013/14
294
11
26.73
30
4
2014/15
296
11
26.91
31
4
2015/16
305
11
27.73
32
6
2016/17
320
11
29.09
32
5
2017/18
320
11
29.09
31
5
2019/20
333
13
25.62
31
1
2020/21
336
13
25.85
32
3
2021/22
336
13
25.85
31
2
2022/23
318
14
22.71
26
0
2023/24
315
13
24.23
30
2
2024/25
297
13
22.85
26
0
2025/26
305
13
23.46
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2010/11: 293 in 2009/10 → 308, +15 pupils.
Biggest loss in a single year: 1993/94: 403 in 1982/83 → 339, -64 pupils.
Largest single-class increase: 2nd Class in 2023/24 (41 → 63, +22).
Largest single-class decrease: 2nd Class in 2022/23 (77 → 41, -36).
Largest cohort-step gain: 2nd → 3rd in 2023/24 (41 → 45, +4).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (77 → 74, -3).
Overall: 411 (1974/75) → 305 (2025/26), -106.
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
41
77
60.2
6
3rd Class
45
74
60.3
6
4th Class
45
76
65.2
6
5th Class
47
75
63.3
6
6th Class
57
77
68.8
6
Total
293
414
334.2
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).