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
18.86
2025/26
Mainstream classes
14
2025/26
Largest class group
22
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
387
17
22.76
27
0
2007/08
397
17
23.35
26
0
2008/09
375
17
22.06
28
0
2009/10
368
17
21.65
24
0
2010/11
353
17
20.76
26
0
2011/12
367
15
24.47
29
0
2012/13
394
15
26.27
30
1
2013/14
392
15
26.13
29
0
2014/15
386
14
27.57
31
5
2015/16
374
14
26.71
30
3
2016/17
339
13
26.08
30
2
2017/18
342
12
28.50
30
4
2019/20
307
12
25.58
28
0
2020/21
294
12
24.50
29
0
2021/22
277
12
23.08
27
0
2022/23
261
14
18.64
25
0
2023/24
259
14
18.50
23
0
2024/25
272
14
19.43
23
0
2025/26
264
14
18.86
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 374 in 2011/12 → 401, +27 pupils.
Biggest loss in a single year: 1995/96: 540 in 1994/95 → 490, -50 pupils.
Largest single-class increase: 2nd Class in 2024/25 (58 → 79, +21).
Largest single-class decrease: Senior Infants in 2023/24 (75 → 61, -14).
Largest cohort-step gain: SI → 1st in 2024/25 (61 → 68, +7).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (79 → 0, -79).
Overall: 808 (1974/75) → 277 (2025/26), -531.
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
64
76
68.5
6
Senior Infants
60
75
66.3
6
1st Class
56
80
68.5
6
2nd Class
58
79
73.0
6
3rd Class
0
0
0.0
1
4th Class
0
0
0.0
1
5th Class
0
0
0.0
1
6th Class
0
0
0.0
1
Total
270
808
465.5
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).