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
19.57
2025/26
Mainstream classes
7
2025/26
Largest class group
28
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
175
6
29.17
31
3
2007/08
171
7
24.43
28
0
2008/09
172
7
24.57
28
0
2009/10
172
7
24.57
27
0
2010/11
177
7
25.29
31
1
2011/12
175
7
25.00
27
0
2012/13
181
7
25.86
31
2
2013/14
173
7
24.71
29
0
2014/15
175
7
25.00
32
1
2015/16
181
7
25.86
31
2
2016/17
170
7
24.29
30
1
2017/18
172
7
24.57
32
1
2019/20
165
7
23.57
28
0
2020/21
160
7
22.86
33
1
2021/22
156
7
22.29
32
1
2022/23
148
7
21.14
29
0
2023/24
145
7
20.71
30
1
2024/25
142
8
17.75
24
0
2025/26
137
7
19.57
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 188 in 1975/76 → 205, +17 pupils.
Biggest loss in a single year: 1993/94: 230 in 1983/84 → 173, -57 pupils.
Largest single-class increase: 3rd Class in 2021/22 (12 → 24, +12).
Largest single-class decrease: 5th Class in 2024/25 (25 → 16, -9).
Largest cohort-step gain: JI → SI in 2025/26 (11 → 17, +6).
Largest cohort-step loss: SI → 1st in 2023/24 (20 → 18, -2).
Overall: 193 (1974/75) → 161 (2025/26), -32.
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
11
20
16.2
6
Senior Infants
14
20
17.7
6
1st Class
16
21
18.3
6
2nd Class
16
23
18.8
6
3rd Class
12
24
18.7
6
4th Class
13
24
19.5
6
5th Class
15
25
20.7
6
6th Class
16
28
22.2
6
Total
161
230
187.9
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).