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
29
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
290
12
24.17
27
0
2007/08
275
12
22.92
28
0
2008/09
267
12
22.25
30
1
2009/10
266
12
22.17
27
0
2010/11
262
12
21.83
27
0
2011/12
305
12
25.42
28
0
2012/13
286
11
26.00
31
2
2013/14
275
11
25.00
29
0
2014/15
264
10
26.40
28
0
2015/16
274
10
27.40
30
1
2016/17
262
10
26.20
29
0
2017/18
254
10
25.40
30
1
2019/20
263
10
26.30
29
0
2020/21
289
11
26.27
32
3
2021/22
292
11
26.55
30
2
2022/23
290
12
24.17
27
0
2023/24
293
12
24.42
27
0
2024/25
308
12
25.67
28
0
2025/26
306
13
23.54
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 335 in 1983/84 → 410, +75 pupils.
Biggest loss in a single year: 1994/95: 410 in 1993/94 → 384, -26 pupils.
Largest single-class increase: 1st Class in 2023/24 (35 → 42, +7).
Largest single-class decrease: 5th Class in 2021/22 (46 → 32, -14).
Largest cohort-step gain: 1st → 2nd in 2025/26 (39 → 46, +7).
Largest cohort-step loss: 5th → 6th in 2024/25 (40 → 36, -4).
Overall: 185 (1974/75) → 306 (2025/26), 121.
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
28
38
33.7
6
Senior Infants
35
42
37.2
6
1st Class
33
42
36.5
6
2nd Class
36
46
39.0
6
3rd Class
30
38
36.0
6
4th Class
30
41
37.0
6
5th Class
32
46
38.7
6
6th Class
32
46
38.3
6
Total
185
410
306.9
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).