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
18.50
2025/26
Mainstream classes
10
2025/26
Largest class group
27
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
254
12
21.17
27
0
2007/08
252
12
21.00
27
0
2008/09
249
11
22.64
28
0
2009/10
236
11
21.45
26
0
2010/11
225
11
20.45
24
0
2011/12
208
10
20.80
24
0
2012/13
190
10
19.00
24
0
2013/14
171
9
19.00
23
0
2014/15
164
8
20.50
26
0
2015/16
160
8
20.00
27
0
2016/17
140
8
17.50
21
0
2017/18
141
7
20.14
24
0
2019/20
134
7
19.14
31
1
2020/21
121
7
17.29
25
0
2021/22
128
6
21.33
28
0
2022/23
150
8
18.75
29
0
2023/24
158
8
19.75
31
2
2024/25
179
10
17.90
26
0
2025/26
185
10
18.50
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2022/23: 134 in 2021/22 → 161, +27 pupils.
Biggest loss in a single year: 2003/04: 315 in 2002/03 → 279, -36 pupils.
Largest single-class increase: 3rd Class in 2025/26 (7 → 27, +20).
Largest single-class decrease: Junior Infants in 2025/26 (39 → 29, -10).
Largest cohort-step gain: JI → SI in 2022/23 (19 → 26, +7).
Largest cohort-step loss: SI → 1st in 2025/26 (32 → 28, -4).
Overall: 340 (2001/02) → 207 (2025/26), -133.
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
19
39
28.6
5
Senior Infants
26
40
31.5
4
1st Class
25
31
28.0
3
2nd Class
5
36
17.3
6
3rd Class
7
27
16.8
6
4th Class
10
29
19.2
6
5th Class
10
29
22.2
6
6th Class
22
30
25.3
6
Total
126
340
205.4
25
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).