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
17.67
2025/26
Mainstream classes
9
2025/26
Largest class group
20
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
185
9
20.56
24
0
2007/08
185
10
18.50
23
0
2008/09
193
10
19.30
27
0
2009/10
184
10
18.40
27
0
2010/11
187
10
18.70
23
0
2011/12
196
10
19.60
24
0
2012/13
215
11
19.55
24
0
2013/14
210
11
19.09
23
0
2014/15
228
12
19.00
24
0
2015/16
255
12
21.25
27
0
2016/17
239
12
19.92
25
0
2017/18
230
12
19.17
24
0
2019/20
214
12
17.83
22
0
2020/21
194
12
16.17
19
0
2021/22
182
12
15.17
18
0
2022/23
168
11
15.27
16
0
2023/24
157
10
15.70
18
0
2024/25
173
10
17.30
19
0
2025/26
159
9
17.67
20
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1983/84: 511 in 1982/83 → 545, +34 pupils.
Biggest loss in a single year: 1993/94: 545 in 1983/84 → 260, -285 pupils.
Largest single-class increase: Junior Infants in 2024/25 (31 → 45, +14).
Largest single-class decrease: 2nd Class in 2025/26 (54 → 38, -16).
Largest cohort-step gain: 1st → 2nd in 2024/25 (49 → 54, +5).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (54 → 0, -54).
Overall: 651 (1975/76) → 159 (2025/26), -492.
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
31
45
39.0
6
Senior Infants
33
49
42.8
6
1st Class
34
51
43.8
6
2nd Class
38
54
46.5
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
143
656
263.0
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).