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
19.33
2025/26
Mainstream classes
9
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
179
8
22.38
25
0
2007/08
189
8
23.62
25
0
2008/09
183
9
20.33
26
0
2009/10
183
8
22.88
28
0
2010/11
188
8
23.50
29
0
2011/12
178
9
19.78
22
0
2012/13
181
9
20.11
28
0
2013/14
185
9
20.56
26
0
2014/15
195
9
21.67
25
0
2015/16
194
9
21.56
26
0
2016/17
201
9
22.33
24
0
2017/18
201
10
20.10
23
0
2019/20
200
10
20.00
23
0
2020/21
203
10
20.30
23
0
2021/22
192
10
19.20
23
0
2022/23
195
10
19.50
24
0
2023/24
184
10
18.40
22
0
2024/25
170
10
17.00
22
0
2025/26
174
9
19.33
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1998/99: 180 in 1997/98 → 193, +13 pupils.
Biggest loss in a single year: 1993/94: 317 in 1982/83 → 171, -146 pupils.
Largest single-class increase: 5th Class in 2025/26 (28 → 40, +12).
Largest single-class decrease: 5th Class in 2024/25 (43 → 28, -15).
Largest cohort-step gain: 5th → 6th in 2023/24 (36 → 41, +5).
Largest cohort-step loss: 3rd → 4th in 2024/25 (41 → 37, -4).
Overall: 519 (1974/75) → 174 (2025/26), -345.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
29
42
34.8
6
3rd Class
30
41
36.2
6
4th Class
30
45
36.7
6
5th Class
28
45
38.7
6
6th Class
31
46
40.0
6
Total
170
519
233.6
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).