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
18.62
2025/26
Mainstream classes
8
2025/26
Largest class group
22
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
224
13
17.23
27
0
2007/08
221
13
17.00
27
0
2008/09
214
13
16.46
26
0
2009/10
202
12
16.83
25
0
2010/11
188
12
15.67
24
0
2011/12
165
11
15.00
24
0
2012/13
144
9
16.00
22
0
2013/14
148
9
16.44
23
0
2014/15
142
8
17.75
27
0
2015/16
144
8
18.00
30
1
2016/17
146
8
18.25
27
0
2017/18
148
8
18.50
26
0
2019/20
146
8
18.25
25
0
2020/21
139
8
17.38
24
0
2021/22
160
8
20.00
22
0
2022/23
160
8
20.00
24
0
2023/24
160
8
20.00
23
0
2024/25
153
8
19.12
22
0
2025/26
149
8
18.62
22
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2021/22: 139 in 2020/21 → 166, +27 pupils.
Biggest loss in a single year: 1993/94: 266 in 1983/84 → 221, -45 pupils.
Largest single-class increase: Junior Infants in 2021/22 (15 → 27, +12).
Largest single-class decrease: Junior Infants in 2022/23 (27 → 19, -8).
Largest cohort-step gain: SI → 1st in 2021/22 (14 → 19, +5).
Largest cohort-step loss: JI → SI in 2022/23 (27 → 21, -6).
Overall: 365 (1979/80) → 161 (2025/26), -204.
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
13
27
18.7
6
Senior Infants
14
21
18.7
6
1st Class
17
21
19.7
6
2nd Class
13
24
19.5
6
3rd Class
17
24
21.5
6
4th Class
19
24
21.2
6
5th Class
17
24
20.2
6
6th Class
20
24
21.5
6
Total
139
365
205.6
38
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).