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
23.45
2025/26
Mainstream classes
11
2025/26
Largest class group
32
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
252
8
31.50
37
5
2007/08
252
9
28.00
34
5
2008/09
252
9
28.00
34
5
2009/10
254
9
28.22
35
5
2010/11
260
9
28.89
36
5
2011/12
255
9
28.33
35
5
2012/13
259
9
28.78
35
6
2013/14
269
10
26.90
34
5
2014/15
268
10
26.80
36
5
2015/16
289
10
28.90
36
4
2016/17
282
11
25.64
36
3
2017/18
281
11
25.55
36
3
2019/20
277
11
25.18
33
3
2020/21
277
11
25.18
36
2
2021/22
273
11
24.82
34
2
2022/23
274
11
24.91
35
1
2023/24
265
11
24.09
30
1
2024/25
267
11
24.27
32
1
2025/26
258
11
23.45
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2006/07: 222 in 2005/06 → 252, +30 pupils.
Biggest loss in a single year: 1993/94: 379 in 1983/84 → 274, -105 pupils.
Largest single-class increase: 6th Class in 2022/23 (34 → 42, +8).
Largest single-class decrease: Junior Infants in 2025/26 (31 → 20, -11).
Largest cohort-step gain: 3rd → 4th in 2025/26 (34 → 40, +6).
Largest cohort-step loss: 5th → 6th in 2024/25 (40 → 38, -2).
Overall: 319 (1974/75) → 258 (2025/26), -61.
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
20
31
27.3
6
Senior Infants
27
34
30.2
6
1st Class
28
34
30.7
6
2nd Class
27
37
33.2
6
3rd Class
34
38
35.5
6
4th Class
35
40
37.8
6
5th Class
35
40
37.8
6
6th Class
33
42
36.5
6
Total
222
390
283.9
43
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).