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
23.17
2025/26
Mainstream classes
12
2025/26
Largest class group
31
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
381
15
25.40
31
3
2007/08
384
15
25.60
32
3
2008/09
377
15
25.13
32
3
2009/10
378
15
25.20
32
2
2010/11
363
15
24.20
32
3
2011/12
356
14
25.43
34
1
2012/13
342
14
24.43
33
1
2013/14
329
14
23.50
29
0
2014/15
305
13
23.46
30
1
2015/16
314
12
26.17
31
2
2016/17
307
13
23.62
30
1
2017/18
294
12
24.50
28
0
2019/20
267
11
24.27
31
1
2020/21
271
12
22.58
29
0
2021/22
256
11
23.27
29
0
2022/23
276
11
25.09
31
1
2023/24
244
11
22.18
32
2
2024/25
248
11
22.55
31
1
2025/26
278
12
23.17
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2025/26: 278 in 2024/25 → 308, +30 pupils.
Biggest loss in a single year: 2000/01: 537 in 1999/00 → 486, -51 pupils.
Largest single-class increase: 5th Class in 2021/22 (26 → 52, +26).
Largest single-class decrease: 4th Class in 2021/22 (52 → 28, -24).
Largest cohort-step gain: 5th → 6th in 2025/26 (31 → 39, +8).
Largest cohort-step loss: 1st → 2nd in 2024/25 (27 → 24, -3).
Overall: 645 (1993/94) → 308 (2025/26), -337.
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
23
48
34.0
6
Senior Infants
25
44
33.5
6
1st Class
27
36
31.0
6
2nd Class
24
36
30.8
6
3rd Class
23
37
30.5
6
4th Class
26
52
36.5
6
5th Class
25
52
34.0
6
6th Class
26
55
36.8
6
Total
268
645
399.6
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).