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
20.00
2025/26
Mainstream classes
11
2025/26
Largest class group
23
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
245
10
24.50
31
1
2007/08
247
10
24.70
30
1
2008/09
274
11
24.91
28
0
2009/10
249
11
22.64
28
0
2010/11
246
10
24.60
29
0
2011/12
240
10
24.00
30
1
2012/13
242
10
24.20
34
2
2013/14
248
10
24.80
29
0
2014/15
262
10
26.20
32
4
2015/16
269
11
24.45
27
0
2016/17
284
11
25.82
33
3
2017/18
292
12
24.33
34
1
2019/20
283
12
23.58
34
4
2020/21
273
12
22.75
33
3
2021/22
240
16
15.00
25
0
2022/23
231
11
21.00
25
0
2023/24
232
11
21.09
24
0
2024/25
230
11
20.91
26
0
2025/26
220
11
20.00
23
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1980/81: 592 in 1979/80 → 661, +69 pupils.
Biggest loss in a single year: 1993/94: 610 in 1983/84 → 367, -243 pupils.
Largest single-class increase: Junior Infants in 2023/24 (15 → 27, +12).
Largest single-class decrease: 6th Class in 2021/22 (49 → 34, -15).
Largest cohort-step gain: 1st → 2nd in 2024/25 (24 → 29, +5).
Largest cohort-step loss: 3rd → 4th in 2023/24 (40 → 36, -4).
Overall: 625 (1974/75) → 226 (2025/26), -399.
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
15
27
22.3
6
Senior Infants
18
32
25.2
6
1st Class
20
38
28.7
6
2nd Class
18
38
29.7
6
3rd Class
29
40
31.7
6
4th Class
31
36
31.8
6
5th Class
30
33
32.3
6
6th Class
31
49
37.0
6
Total
226
661
349.5
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).