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
24.00
2025/26
Mainstream classes
17
2025/26
Largest class group
30
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
275
12
22.92
26
0
2007/08
274
12
22.83
26
0
2008/09
279
12
23.25
27
0
2009/10
275
12
22.92
27
0
2010/11
283
12
23.58
29
0
2011/12
295
12
24.58
29
0
2012/13
302
12
25.17
31
1
2013/14
289
12
24.08
30
1
2014/15
296
12
24.67
32
1
2015/16
296
12
24.67
30
3
2016/17
288
12
24.00
29
0
2017/18
298
12
24.83
32
2
2019/20
299
12
24.92
30
1
2020/21
288
13
22.15
29
0
2021/22
285
15
19.00
28
0
2022/23
393
16
24.56
33
5
2023/24
410
17
24.12
31
1
2024/25
417
17
24.53
31
1
2025/26
408
17
24.00
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 291 in 2021/22 → 399, +108 pupils.
Biggest loss in a single year: 1999/00: 257 in 1998/99 → 243, -14 pupils.
Largest single-class increase: 6th Class in 2022/23 (25 → 47, +22).
Largest single-class decrease: 6th Class in 2021/22 (38 → 25, -13).
Largest cohort-step gain: SI → 1st in 2022/23 (31 → 45, +14).
Largest cohort-step loss: 4th → 5th in 2025/26 (49 → 45, -4).
Overall: 148 (1993/94) → 414 (2025/26), 266.
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
33
57
49.7
6
Senior Infants
31
57
48.3
6
1st Class
37
57
48.0
6
2nd Class
37
56
46.2
6
3rd Class
35
54
46.0
6
4th Class
33
54
44.7
6
5th Class
27
55
42.2
6
6th Class
25
55
42.8
6
Total
148
423
280.8
33
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).