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
22.45
2025/26
Mainstream classes
11
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
284
10
28.40
33
4
2007/08
296
10
29.60
35
6
2008/09
316
11
28.73
34
6
2009/10
342
12
28.50
31
6
2010/11
320
12
26.67
34
3
2011/12
321
12
26.75
31
1
2012/13
331
12
27.58
29
0
2013/14
336
12
28.00
33
1
2014/15
318
12
26.50
31
2
2015/16
314
12
26.17
32
5
2016/17
315
12
26.25
33
3
2017/18
310
12
25.83
29
0
2019/20
292
12
24.33
27
0
2020/21
272
11
24.73
27
0
2021/22
277
11
25.18
32
2
2022/23
266
11
24.18
33
1
2023/24
262
11
23.82
36
2
2024/25
247
11
22.45
32
2
2025/26
247
11
22.45
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2002/03: 211 in 2001/02 → 244, +33 pupils.
Biggest loss in a single year: 1993/94: 287 in 1983/84 → 238, -49 pupils.
Largest single-class increase: 4th Class in 2021/22 (24 → 43, +19).
Largest single-class decrease: Senior Infants in 2023/24 (42 → 23, -19).
Largest cohort-step gain: SI → 1st in 2025/26 (31 → 36, +5).
Largest cohort-step loss: JI → SI in 2023/24 (26 → 23, -3).
Overall: 254 (1974/75) → 259 (2025/26), 5.
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
25
41
29.8
6
Senior Infants
23
42
31.3
6
1st Class
22
40
32.5
6
2nd Class
25
41
32.8
6
3rd Class
30
42
35.5
6
4th Class
24
43
32.8
6
5th Class
24
42
34.2
6
6th Class
24
42
35.0
6
Total
191
342
268.7
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).